25 results on '"Participation index"'
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2. Borsa İstanbul'da Ramazan Ayı Anomalisinin İncelenmesi: Katılım Endeksi Üzerine Bir Araştırma.
- Author
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ÇÖMLEKÇİ, İstemi
- Subjects
- *
EFFICIENT market theory , *ABNORMAL returns , *INVESTORS , *STOCK prices , *PARTICIPATION - Abstract
The efficient markets hypothesis argues that stock prices reflect all information in the market and that it is not possible for investors to obtain abnormal returns. However, in some of the academic studies, it was determined that this hypothesis was not valid and these situations were stated as anomalies. The aim of this study is to examine whether there is a Ramadan effect, which is among the periodic anomalies in Borsa Istanbul. The research covers a 166-month period between January 2011 and May 2024. In the study, the power ratio method was used to detect the Ramadan anomaly in the Participation Index. As a result of the study, it was determined that the highest monthly average return occurred in the month of Rabi al-Ahir and the lowest monthly average return occurred in the month of Cemaziyelahir. As a result of the study, it was concluded that there was a periodic anomaly in the months of Rajab and Ramadan, which are the three months considered sacred in Islamic belief, and that there was no effect of Shaban. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
3. EVALUATING WOMEN'S CONTRIBUTION TO VEGETABLE CULTIVATION AND THEIR CONCERNS USING PARTICIPATORY APPROACHES TO ACHIEVE NUTRITIONAL SECURITY.
- Author
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Albert, Janaki Rani, Prithivimangalam, Murugan Ponnusamy, Ramar, Manimekalai, Balakrishnan, Kavitha, and Nadarajah, Suganthi
- Abstract
The agriculture industry is becoming more "feminized," with more women taking on diverse roles as labourers, entrepreneurs, and cultivators as a result of males migrating from rural to urban areas at an increasing rate. Empirical data worldwide indicates that women play a critical role in maintaining regional agro-biodiversity and guaranteeing food and nutritional security. From clearing land to selling, women are integral to every aspect of farming operations. Despite being referred to as "Invisible Workers," There is gender inequality in their access to inputs, marketing, consulting services, land ownership and remuneration. Keeping this in view, a study was carried out to assess the Participation Index of women in vegetable cultivation and explore the important gender issues from cultivation to marketing. Rank Based Quotient method in the Participatory Rural Appraisal technique was used. The Participation Index falls between 0.23 and 0.67. The major gender issues perceived were the pay gap between men and women (RBQ value of 83.67), accessibility to inputs and resources (84.35) and low influence over the commodities for marketing (116.19). But regardless of these issues, women are actively involved in various agricultural activities and nowadays, the women are agripreneurs instead of just managing households. Hence, proper attention has to be given for fair pay, stable income, easy access to resources and knowledge on current marketing trends. [ABSTRACT FROM AUTHOR]
- Published
- 2024
4. Bireysel Yatırımcıların Dini Yönelim ve Finansal Okuryazarlık Düzeyleri ile Davranışsal Eğilimlerinin Katılım Endeksi Yatırımlarına Etkisi: BIST’te Bir Uygulama.
- Author
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AYDIN, Salih and ÇALI, Mehmet Serkan
- Abstract
Copyright of Journal of Auditing & Assurance Services (AUDAS) is the property of Journal of Auditing & Assurance Services (AUDAS) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2024
5. NONLINEAR RELATIONSHIPS BETWEEN THE PARTICIPATION INDEX AND KEY FINANCIAL ASSETS: A QUANTILE REGRESSION ANALYSIS.
- Author
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ŞİMŞEK, Ahmed İhsan and BULUT, Emre
- Subjects
QUANTILE regression ,FOREIGN exchange rates ,ASSET management ,CORPORATE profits ,STOCK exchanges - Abstract
Copyright of Omer Halisdemir Universitesi Iktisadi ve Idari Bilimler Fakültesi Dergisi is the property of Omer Halisdemir University, Faculty of Economics & Admistrative Sciene and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2024
- Full Text
- View/download PDF
6. Adoption of community-based land rehabilitation programs (CBLRP) and its effect on livelihoods in Offa district, south Ethiopia
- Author
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Bezabih Fanta, Zekarias Zemarku, and Elias Bojago
- Subjects
Binary logistic regression ,Decision making ,Land rehabilitation ,Livelihoods ,Participation index ,Propensity matching score ,Agriculture (General) ,S1-972 ,Nutrition. Foods and food supply ,TX341-641 - Abstract
Land degradation is a major issue in Ethiopia and has a significant impact on agriculture and subsistence. Community-based land restoration projects are essential to address this issue. This study aimed to evaluate the implementation of a community-based land restoration programs and its impact on livelihoods in the Offa District of south Ethiopia. Four Kebeles were randomly selected for the study and 133 household heads (52 program participants and 81 non-participants) were selected using a simple random sampling method. Data was collected by using an interview schedule, focus-group discussions, and key informant interviews. Data were analyzed using a binary logistic regression model, propensity score matching, participation index (PI), t-test, and chi-square test. The results showed that the implemented land rehabilitation measures had higher crop production and farm income for most adopter households compared to their counterparts. The logistic regression model revealed that the slope of farmland, gender of household heads, family size, perception of rehabilitation, access to training, and farm experience positively influenced household participation in the community-based land rehabilitation programme (CBLRP) in the study area. However, the age of the respondents, access to education, size of farmland, frequency of extension contact positively and ownership of livestock negatively influenced household participation. Propensity score matching revealed that CBLRP resulted in higher crop output and farm revenue for most participating families than counterparts. Based on these findings, it is recommended that agricultural and rural development offices, non-governmental organizations, and other stakeholders should consider the factors that influence household participation in rehabilitation programs in the study area to effectively address the issue of the households’ participation at various levels of rehabilitation programs.
- Published
- 2024
- Full Text
- View/download PDF
7. Review of the monograph: Volgina, N.A., Liu, Pengfei (2023). China in Global Value Chains. Moscow: KNORUS publ., 174 p.
- Author
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Petr A. Orekhovsky
- Subjects
china ,global value chains ,gvc ,foreign value added ,fva ,domestic value added ,dva ,participation index ,position index ,Economic growth, development, planning ,HD72-88 ,Economics as a science ,HB71-74 - Abstract
The review is devoted to the assessment of the monograph by N.A. Volgina and Liu Pengfei “China in Global Value Chains”. Based on the input-output methodological approach and the principle of decomposition of gross exports, the authors come to a number of relevant conclusions that depict the dynamics of China’s participation in global value chains. Thus, the last decades have been characterized by uneven growth of Chinese domestic and foreign value added: domestic value added has grown at a faster rate than foreign value added, and its share in gross exports has gradually increased. At the same time, there has been a drop in China’s “participation index” in global value chains, and this decrease was developing at the expense of a decrease in upward participation. The “position Index” was characterized by a different trend: its slow growth from negative to positive values was observed, which reflected the fact that China’s income from value-added trade was increasing. The authors’ calculations show that there are differences in the dynamics of “indices of participation” of individual industries in value chains: the share of labourintensive industries is decreasing and the share of capital-intensive industries, primarily engineering, is increasing. For the first time in Russian economic literature, this monograph critically assesses the contribution of Chinese economists to the study of the formation of global and regional value chains in China. In the final part of the monograph, the authors point out the contradictory effects of China’s participation in global value chains, which include both the benefits and risks of such integration.
- Published
- 2023
- Full Text
- View/download PDF
8. A spatial co-location pattern mining framework insensitive to prevalence thresholds based on overlapping cliques.
- Author
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Tran, Vanha, Wang, Lizhen, and Zhou, Lihua
- Subjects
TEXTURE mapping ,GROUP process ,ALGORITHMS - Abstract
Discovering spatial co-location patterns is a process of finding groups of distinct spatial features whose instances are frequently located together in spatial proximity. A co-location pattern is prevalent if its participation index is no less than a minimum prevalence threshold given by users. Most of the existing algorithms are very sensitive to the prevalence threshold, when users change the prevalence threshold, these algorithms have to re-collect table instances and re-calculate participation indexes of all patterns for mining the prevalent patterns that users expect to acquire. To tackle this issue, we propose an overlapping clique-based spatial co-location pattern mining framework (OCSCP). In our framework, we design a two-level filter mechanism with the first level is a feature type filter and the second level is a neighboring instance filter. By employing the mechanism, under a certain neighbor relationship, spatial instances are divided into a set of overlapping cliques and each clique is also a co-location instance of a pattern. And then, a co-location pattern hash map structure is designed to store table instances of patterns based on these overlapping cliques. The participation index of each pattern can be fast and directly calculated from the hash map structure. Thus, when the prevalence threshold is changed, the proposed framework does not need to re-gather table instances, and the mining result can be adaptively and quickly given to users. The proposed algorithms are performed on both synthetic and real-world data sets to demonstrate that our algorithms can rapidly respond to user requirements compared to the previous algorithms. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
9. Index of active participation in society.
- Author
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Chakrabartty, Satyendra
- Subjects
STATISTICAL hypothesis testing ,TIME reversal ,GAUSSIAN distribution ,PARTICIPATION ,RESEARCH personnel - Abstract
The concept of Active citizenship is gaining importance. Ignoring the issues of selection of dimensions and items, the paper addresses methodological issues and aggregation of indicators of multidimensional active participation index (PI) by two methods. Policy makers and researchers can take advantages of the proposed methods of arithmetic aggregation (Method-1) with normally distributed transformed scores or multiplicative aggregation (Method-2) without scaling and choosing weights. Thus, the Method-2 avoids the problems of rank robustness specific to selection of weights. Multiplicative aggregation proposed in Method-2 can be converted to additive model by taking logarithms. Normal distributions of two or more groups by Method-1 are likely to give rise to lower value of Ginis coefficient indicating equality. Avoiding major limitations of ordinal scores, both methods satisfy desired properties, analysis under parametric set up for meaningful comparisons including testing of statistical hypothesis, identification of critical dimensions, ranking of the dimensions by elasticity, assessment of progress/decline of PI, etc. Method-2 offers more generalized approach satisfying time reversal test and formation of chain indices. However, test of normality is required for this method unlike the Method-1 which ensures normally distributed scores. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
10. BIST Katılım Sürdürülebilirlik Endeksi Hisseleri ile Bulanık Portföy Seçimi.
- Author
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Göktaş, Furkan and Güçlü, Fatih
- Abstract
Copyright of Journal of Economy Business & Management is the property of Journal of Economy, Business & Management and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2023
- Full Text
- View/download PDF
11. Does Being Listed in BIST Sustainability Participation Index Affect Share Prices?
- Author
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KONAK, Fatih and TÜRKOĞLU, Diler
- Subjects
SUSTAINABILITY ,ENVIRONMENTAL impact charges ,ECONOMIC development ,ENVIRONMENTAL quality ,MARKETS - Abstract
Copyright of BES Journal: International Journal of Business & Economic Studies is the property of BES Journal - International Journal of Business & Economic Studies and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2023
- Full Text
- View/download PDF
12. Korku Endeksi Etkisinde İslami ve Konvansiyonel Pay Piyasa Endeksleri Arasındaki İlişki: Türkiye Örneği.
- Author
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Kazak, Hasan
- Abstract
Copyright of Journal of Emerging Economies & Policy is the property of JOEEP: Journal of Emerging Economies & Policy and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2023
13. Pay Senedi Yatırımlarından Elde Edilen Gelirlerin Arındırılmasına Yönelik Fıkhî Bir İnceleme.
- Author
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ÖZMEN, Mehmet Yuşa
- Subjects
- *
BUSINESS enterprises , *INVESTORS , *BUSINESS losses , *STOCKS (Finance) , *INCOME , *WEED competition , *CONSUMER price indexes - Abstract
Individuals who own shares of companies traded on the stock exchange become partners of the companies they invest in. The situation also brings to light certain issues for shareholders in terms of their religious obligations, in addition to the advantages of receiving a share of the company's earnings as profit and the risks of being affected by the company's losses. One of the issues that has come up in this context is the possibility that the income from the company one has become a partner in may contain prohibited elements from a fiqh perspective. Especially the financial needs that arise as a result of market conditions, the need to protect savings against inflation, legal obligations, and similar factors can affect companies' possession of income that is considered prohibited according to fiqh. In such cases, the issue of purifying prohibited income becomes even more important for investors. Since shareholders are partners in the companies they invest in, the company's income naturally becomes the income of the shareholders in proportion to their shares. From the perspective of Islamic law, it is a general rule that a Muslim individual's wealth should not include income that is considered prohibited from a fiqh perspective. However, as is the case in a partnership relationship, it is likely that prohibited income may arise as a result of the management of others or the imposition of certain conditions. It is generally accepted that if such income arises, it should be purified by allocating it to certain aspects. This article examines the reasons why prohibited income may arise in companies that one invests in, how it can be identified, what method investors can use to purify it, and which aspects the purification amount can be allocated to, aiming to provide a comprehensive fiqh perspective on the purification of shares. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
14. Identifying Important Nodes in Trip Networks and Investigating Their Determinants.
- Author
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Li, Ze-Tao, Nie, Wei-Peng, Cai, Shi-Min, Zhao, Zhi-Dan, and Zhou, Tao
- Subjects
- *
URBAN transportation , *TRANSPORTATION geography , *CITIES & towns , *URBAN planning , *URBAN policy - Abstract
Describing travel patterns and identifying significant locations is a crucial area of research in transportation geography and social dynamics. Our study aims to contribute to this field by analyzing taxi trip data from Chengdu and New York City. Specifically, we investigate the probability density distribution of trip distance in each city, which enables us to construct long- and short-distance trip networks. To identify critical nodes within these networks, we employ the PageRank algorithm and categorize them using centrality and participation indices. Furthermore, we explore the factors that contribute to their influence and observe a clear hierarchical multi-centre structure in Chengdu's trip networks, while no such phenomenon is evident in New York City's. Our study provides insight into the impact of trip distance on important nodes within trip networks in both cities and serves as a reference for distinguishing between long and short taxi trips. Our findings also reveal substantial differences in network structures between the two cities, highlighting the nuanced relationship between network structure and socio-economic factors. Ultimately, our research sheds light on the underlying mechanisms shaping transportation networks in urban areas and offers valuable insights into urban planning and policy making. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
15. Determinants of Tomato Farmers Participation in Agricultural Services and Training Centre (ASTC) Activities
- Author
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Godfrey Onuwa and Solomon Folorunsho
- Subjects
agricultural programme ,agricultural technology ,determinants ,participation index ,technology transfer ,Agriculture ,Agriculture (General) ,S1-972 - Abstract
Agricultural production have remained rudimentary despite many years’ of technology development and transfer; to reverse this declining trend, several agricultural policies and programmes aimed at ensuring sustainable production, improved income and farm expansion with added value output have become very germane. This study therefore analyzed tomato farmers’ participation in ASTC activities in Jos-south local Government Area of Plateau state, Nigeria. This study adopted multi stage sampling techniques. Primary was data collected from 80 respondents, during the 2017/2018 farming season and were analyzed using descriptive statistics, participation index, weighted average index analysis and Binary Logit regression. The result of the study revealed that 73.8% were male; 88.75% had access to extension contact. The estimated mean for educational training, household size, farm income and farming experience were 6 years; 8 people; ₦108,500/ha and 12 years respectively. Also, most (68.7%) of the farmers have low participation index of ≤0.45; this trend is responsible for the existing low farm productivity of this crop in the area. Furthermore, the benefits derived from participating in ASTC activities among the respondents were significant as indicated by their weighted average index. In addition, the estimated coefficient of multiple determination (R2) was 0.7602. Also, the coefficients of household size (0.421), education (0.559), experience (0.808), income (0.485) and extension contact (0.376) were statistically significant; implying that these factors in the regression model affected the likelihood of farmer’s decision to participate in ASTC activities. Adequate labour supply; establishment of pilot farms; capacity training; access to agricultural credit, extension services, agro service centres, agricultural information, input supply and cooperative formation are strongly recommended.
- Published
- 2022
- Full Text
- View/download PDF
16. Local forest institution and participation of local communities: A study in bankura (south) forest division in West Bengal, India
- Author
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Ghosh, Payal and Basu, Jyotish Prakash
- Published
- 2021
17. COVİD-19 AŞILANMA HIZININ KATILIM 30 VE BIST 30 ENDEKS GETİRİLERİ ÜZERINDEKİ ETKİSİ.
- Author
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ÖNER, M. Hadin
- Abstract
Copyright of Bulletin of Accounting & Finance Reviews / Muhasebe ve Finans İncelemeleri Dergisi is the property of Muhasebe & Finans Incelemeleri Dergisi and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2022
- Full Text
- View/download PDF
18. Testing the effect of local macroeconomic indicators and global risk factors on the Turkish participation stock market: Evidence from quantile regression approach.
- Author
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ESSAYEM, Amal, GÖRMÜŞ, Şakir, and GÜVEN, Murat
- Subjects
- *
MACROECONOMICS , *ECONOMIC indicators , *STOCK exchanges , *CONSUMER price indexes , *MONETARY policy - Abstract
The purpose of this study is to investigate the effect of local macroeconomic indicators and global risk factors on the participation index in the Turkish stock market from May 2011 to April 2021. Using the quantile regression approach, we detect the impact of local macroeconomic indicators and global risk factors across different market conditions: bull, bear, and normal. The empirical results demonstrate that, among local macroeconomic indicators, monetary policy-related indicators, Consumer Price Index (CPI)(Slope of Government Bond [SGB]), merely influence participation 30 index (KAT30) return in bearish market (bullish market); however, credit default swap negatively affects KAT30 return across all quantiles. When it comes to global risk factors, results show that KAT30 return is negatively affected by the implied volatility index across all quantiles except Q0.75 and Q0.95. This means that the implied volatility index impact on KAT30 return is stronger during the bearish market. Yet, Oil Volatility Index (OVX) and Morgan Stanley Country Index (MSCI) positively impact the index return across upper quantiles. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
19. Identifying Important Nodes in Trip Networks and Investigating Their Determinants
- Author
-
Ze-Tao Li, Wei-Peng Nie, Shi-Min Cai, Zhi-Dan Zhao, and Tao Zhou
- Subjects
distance trip network ,urban structure ,travel pattern ,centrality index ,participation index ,Science ,Astrophysics ,QB460-466 ,Physics ,QC1-999 - Abstract
Describing travel patterns and identifying significant locations is a crucial area of research in transportation geography and social dynamics. Our study aims to contribute to this field by analyzing taxi trip data from Chengdu and New York City. Specifically, we investigate the probability density distribution of trip distance in each city, which enables us to construct long- and short-distance trip networks. To identify critical nodes within these networks, we employ the PageRank algorithm and categorize them using centrality and participation indices. Furthermore, we explore the factors that contribute to their influence and observe a clear hierarchical multi-centre structure in Chengdu’s trip networks, while no such phenomenon is evident in New York City’s. Our study provides insight into the impact of trip distance on important nodes within trip networks in both cities and serves as a reference for distinguishing between long and short taxi trips. Our findings also reveal substantial differences in network structures between the two cities, highlighting the nuanced relationship between network structure and socio-economic factors. Ultimately, our research sheds light on the underlying mechanisms shaping transportation networks in urban areas and offers valuable insights into urban planning and policy making.
- Published
- 2023
- Full Text
- View/download PDF
20. Farmers' Participation in Watershed Management in Sodo Zuria District of Southern Ethiopia.
- Author
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BALTA, Daniel, SENAPATHY, Marisennayya, PANDIKUMAR, Marisennayya, and AWUCHI, Chinaza Godswill
- Subjects
FARMERS ,WATERSHED management ,FAMILY size ,ECONOMETRICS ,MECHANICAL energy - Abstract
This examination aimed to survey the farmers' participation in watershed management and distinguish significant factors deciding the farmers' participation and cooperation in watershed management practices in the investigation territory. Descriptive statistics and econometric models were utilized for investigation purposes to meet the expressed targets. The sampled farmer families were classified low, medium, and highly dependent on their support score esteems the 4-8, 9-12, and 13-16 participation run separately. The farmers' participation in problem identification and decision making, planning and monitoring and evaluation is shallow in contrast with their participation in the execution level. The Ordered Logit Model outcome uncovered that among the 17 variables estimated to influence the farmers' participation in watershed management, 8 variables were measurably noteworthy with the speculated sign as determinants of farmers' participation in the watershed the executives. Consequently, the family size is positive and significantly influence the farmers' participation; dependency ratio negatively and significantly influences the farmers' participation; more dependency ratio diminishes time, work, and enthusiasm to partake in watershed management practices, education positive and fundamentally influence the farmers' participation, farm size is positive and significantly affect the farmers' participation, the distance of parcel of land from residence positive and altogether influence the farmers' participation, soil fertility positive and altogether influence the farmers' participation, extension contact positive and altogether influence the farmers' participation, farmers households who approach credit were found to have negative and fundamentally influence the farmers' participation. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
21. Reducing False Discoveries in Statistically-Significant Regional-Colocation Mining: A Summary of Results
- Author
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Subhankar Ghosh and Jayant Gupta and Arun Sharma and Shuai An and Shashi Shekhar, Ghosh, Subhankar, Gupta, Jayant, Sharma, Arun, An, Shuai, Shekhar, Shashi, Subhankar Ghosh and Jayant Gupta and Arun Sharma and Shuai An and Shashi Shekhar, Ghosh, Subhankar, Gupta, Jayant, Sharma, Arun, An, Shuai, and Shekhar, Shashi
- Abstract
Given a set S of spatial feature types, its feature instances, a study area, and a neighbor relationship, the goal is to find pairs such that C is a statistically significant regional-colocation pattern in r_{g}. This problem is important for applications in various domains including ecology, economics, and sociology. The problem is computationally challenging due to the exponential number of regional colocation patterns and candidate regions. Previously, we proposed a miner [Subhankar et. al, 2022] that finds statistically significant regional colocation patterns. However, the numerous simultaneous statistical inferences raise the risk of false discoveries (also known as the multiple comparisons problem) and carry a high computational cost. We propose a novel algorithm, namely, multiple comparisons regional colocation miner (MultComp-RCM) which uses a Bonferroni correction. Theoretical analysis, experimental evaluation, and case study results show that the proposed method reduces both the false discovery rate and computational cost.
- Published
- 2023
- Full Text
- View/download PDF
22. Identifying Important Nodes in Trip Networks and Investigating Their Determinants
- Author
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Zhou, Ze-Tao Li, Wei-Peng Nie, Shi-Min Cai, Zhi-Dan Zhao, and Tao
- Subjects
distance trip network ,urban structure ,travel pattern ,centrality index ,participation index - Abstract
Describing travel patterns and identifying significant locations is a crucial area of research in transportation geography and social dynamics. Our study aims to contribute to this field by analyzing taxi trip data from Chengdu and New York City. Specifically, we investigate the probability density distribution of trip distance in each city, which enables us to construct long- and short-distance trip networks. To identify critical nodes within these networks, we employ the PageRank algorithm and categorize them using centrality and participation indices. Furthermore, we explore the factors that contribute to their influence and observe a clear hierarchical multi-centre structure in Chengdu’s trip networks, while no such phenomenon is evident in New York City’s. Our study provides insight into the impact of trip distance on important nodes within trip networks in both cities and serves as a reference for distinguishing between long and short taxi trips. Our findings also reveal substantial differences in network structures between the two cities, highlighting the nuanced relationship between network structure and socio-economic factors. Ultimately, our research sheds light on the underlying mechanisms shaping transportation networks in urban areas and offers valuable insights into urban planning and policy making.
- Published
- 2023
- Full Text
- View/download PDF
23. Is the performance of the companies operating in the participation index in the Turkish economy affected by the macroeconomic perspective?
- Author
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AVCI, Pınar and SUMERLİ SARIGÜL, Sevgi
- Subjects
Participation index ,Macroeconomic factors ,Structural break ,ARDL Bounds test ,Causality analysis ,Traditional stock market index ,Economics ,İktisat - Abstract
This study aims to examine whether the participation index performance in the Turkish economy is going well in terms of macroeconomic factors over the period of January 2018March 2021. In this study, the cointegration between the variables is checked with the ARDL bound test and the Johansen cointegration method. The long-term coefficients are estimated through the ARDL model. Finally, the causal linkage among the participation index performance and traditional stock market index, short-term interest rate, money supply, and the inflation rate is tested with the Toda-Yamamoto causality method. The main empirical findings are shown as in the following: 1) there is cointegration between the Participation index performance and traditional stock market index, short-term interest rate, money supply, and inflation rate under the structural break, 2) the traditional stock market index and money supply improve the Participation index performance in Turkish economy while short-term interest rates hamper it, and 3) there is a two-way causality between the participation index performance and the traditional stock market index and inflation rate, and a one-way causality relationship running from money supply and interest rates to Participation index performance. These evidences provide important suggestions to investors in terms of portfolio diversification and to policymakers in the light of risk allocation and market policies.
- Published
- 2022
24. COVID-19 AŞILANMA HIZININ KATILIM 30 VE BİST30 ENDEKS GETİRİLERİ ÜZERİNDEKİ ETKİSİ
- Author
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Dr. Muhammed Hadin ÖNER
- Subjects
Islamic Finance ,Islamic Index ,Participation Index ,Business Finance ,General Engineering ,İşletme Finans ,Katılım Finans ,İslami Endeksler ,Katılım Endeksi - Abstract
Bu çalışmada 2020 yılı aralık ayı başında Çin’de ortaya çıkan ve tüm dünya ülkelerine yayılan ve 2021 yılı mart ayında Türkiye’de ortaya çıkan COVID-19 pandemi sürecindeki yeni aşılamanın, BİST 100 ve Katılım 30 endeks getirilerine etkileri araştırılmıştır. Endekslerin getirileri için kurulan EGARCH modelleri yardımı ile BİST 100 ile Katılım 30 endekslerinin pandemi sürecinde yeni aşılanmaya verdikleri tepkiler analiz edilmiştir. Sonuçlar, aşılanma hızının Katılım 30 endeksi getirilerini negatif yönde etkilerken BİST100 endeks getirileri yönünden herhangi bir ilişki bulunamamıştır. Endeksler arasında elde edilen bu farklı bulguların, Katılım 30 ve BİST100 endekslerine ait yatırımcıların irrasyonel davranışlarından kaynaklanabileceği ve bu durum üzerinde özellikle muhafazakarlık eğiliminin etkisinin olmuş olabileceği akıllara gelmektedir. Çalışmanın Katılım 30 ve BİST100 endekslerinin yeni aşılanmaya verdikleri tepkileri incelemesi ve farklılıkları ortaya koymaya çalışması açısından literatüre katkı sağlayabileceği düşünülmektedir., In this study, the effects of the new vaccinations on the BIST 100 and Participation 30 indices during the COVID-19 pandemic, which started in China at the beginning of December 2020 and spread to all countries of the world and emerged in Turkey in March 2021, are investigated. With the help of EGARCH models established for the returns of the indices, the responses of the BIST 100 and Participation 30 indices to the new vaccinations during the pandemic process are analyzed. The results show that the rate of vaccination affects the Participation 30 index returns negatively. In addition, it has been determined that there is no relationship between the new vaccination and the BIST100 index in terms of return. Additionally, it is concluded that the new vaccination caused a decrease in the volatility in the trading volume of the Participation 30 index and an increase in the volatility in the trading volume of the BIST100 index. It comes to mind that these different findings between the indices may be due to the irrational behavior of investors belonging to the Participation 30 and BIST100 indices, and that the tendency of conservatism may have had an impact on this situation. It is thought that the study can contribute to the literature in terms of examining the responses of the Participation 30 and BIST100 indices to the new vaccinations and trying to reveal the differences.
- Published
- 2022
25. Katılım 30 Endeksi’nde İşlem Gören İşletmelerin Sermaye Yapısı Belirleyicilerinin Panel Veri Analizi ile İncelenmesi
- Author
-
Akay, Yusuf, Nur, Tuğba, Akay, Yusuf, and Nur, Tuğba
- Subjects
Panel Veri Analiz ,Capital Structure ,Participation Index ,Katılım Endeksi ,Panel Data Analysis ,Sermaye Yapısı - Abstract
Amaç – Katılım 30 Endeksi’nde faaliyet gösteren ve endekste yer alabilmeleri için borçlanma düzeylerinin belirli seviyede tutmaları gereken 17 reel sektör işletmesi için sermaye yapısı belirleyicilerinin 2011-2020 döneminde tespit edilmesi amaçlanmıştır Yöntem – Çalışmada sermaye yapısı belirleyicileri panel veri analizi yöntemi ile incelenmiştir. Borç dışı vergi kalkanı, büyüklük, faaliyet kaldıracı, likidite oranı, aktif karlılık ve satışlardaki dalgalanma bağımsız değişkenler olarak, kaldıraç oranı ise bağımlı değişken olarak modele dahil edilmiştir. Bulgular – Analiz sonucunda borç dışı vergi kalkanı ve satışlardaki dalgalanma ile kaldıraç oranı arasında istatistiksel olarak anlamlı bir ilişki tespit edilememiştir. Büyüklük ve faaliyet kaldıracı ile kaldıraç oranı arasında istatistiksel olarak anlamlı ve pozitif ilişki, likidite ve aktif karlılık değişkenleri ile kaldıraç oranı arasında ise istatistiksel olarak anlamlı ve negatif ilişki tespit edilmiştir. Tartışma – Katılım 30 Endeksi’nde işlem gören işletmelerin temsil, işaret etkisi ve finansal hiyerarşi teorilerini dikkate alarak sermaye yapısı kararlarını aldıkları söylenebilmektedir. Purpose – This study, it is aimed to determine the capital structure determinants of the 17 real sector companies operating in the Participation 30 Index and whose debt levels must be retained at a specific level in order to be included in the index in the period of 2011 and 2020. Design/methodology/approach – This study, determinants of capital structure were examined by panel data analysis method. Non-debt tax shield, size, operating leverage, liquidity ratio, return on assets and fluctuation in sales are included in the model as independent variables, while financial leverage ratio is included in the model as dependent variables. Findings – As a result of the analysis no statistically significant relation of the financial leverage to the non-debt tax shield and sales fluctuations was discovered. A statistically significant and positive relationship was found between the size, operating leverage, and financial leverage, while a statistically significant and negative relationship was found between the liquidity, return on assets and the financial leverage. Discussion – It can be said that the companies trading on the Participation 30 Index make capital structure decisions based on the agency cost, signaling, and the pecking order theories.
- Published
- 2022
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