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38 results on '"Taleb, Lotfi"'

11. The threshold effects of ICT on CO2 emissions: evidence from the MENA countries.

Author

Ben Lahouel, Béchir, Taleb, Lotfi, Managi, Shunsuke, and Guesmi, Khaled

Subjects
*INSTRUMENTAL variables (Statistics), *FOREIGN investments, *ENVIRONMENTAL quality, *ENVIRONMENTAL degradation, *ENERGY consumption, *EMISSION control, *ELECTRIC power consumption
Abstract

The objective of this paper is to investigate the nonlinear relationship between ICT and CO2 emissions by controlling for economic growth, foreign direct investment, energy consumption, and trade openness. Using data from 16 Middle East and North African (MENA) countries over the period 1990–2019, we apply the Panel Smooth Transition Regression (PSTR) model, as introduced by (González A, Teräsvirta T, vanDijk D (2005) Panel smooth transition regression models. SEE/EFI Working Paper Series in Economics and Finance, No. 604), to study the potential regime-switching behavior of the relationship between the variables. The results reveal the existence of a strong regime-switching effect between ICT and CO2 emissions. It was found that after reaching a certain threshold, ICT use and penetration starts to significantly mitigate environmental degradation. Our results show that high levels of ICT not only improve environmental quality but can also be part of the solution to combat the environmental challenges that the MENA region has faced over the past decades. In addition, to account for the potential endogeneity bias, we also develop and estimate a PSTR model with instrumental variables (IV-PSTR) using the approach of (Fouquau et al., Econ Model 25:284–299, 2008). The results obtained confirm those initially found by the PSTR model. The study concludes with policy implications. [ABSTRACT FROM AUTHOR]

Published
2024
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37. Dividend Policy in Tunisia: A Signalling Approach

Author

Taleb Lotfi

Subjects
Signalling, Abnormal return, Event study, Economics, Dividend, Context (language use), Monetary economics, Dividend policy, Emerging markets, Stock price
Abstract

The main objective of this study was to establish the stock price reaction to dividend announcements of firms quoted at the Tunisian Securities exchange (TSE). To do so, we develop a traditional event study. Two robust results emerge: First, when we observe the 196 announcements of dividends between years 1996-2004, the result is inconsistent with signaling theory, as long as, no abnormal return was observed on the announcement day (event period). Second, When the overall sample is divided into three sub-group (dividend increase, dividend-no-change and dividend), we observe a significant and abnormal return about -1.242 percent and -1.697 percent respectively on day D(t0-4) and D(t0+4) around the dividend announcement day (Dt0) only for the sub-group of firms that decreases their dividend. This result corroborates prior research in Tunisian context [Ben Naceur and al. (2006); Guizani and Kouki (2011)] that confirm, by using a different approach, the Lintner’s (1956) conclusions which states that Tunisian’ firms generally tend to avoid a dividend decrease (or cuts) and can constitute a supporting evidence of the dividend information content hypothesis in TSE.

Published
2018

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