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We document the implications of the 2014 revisions to the Turkish Household Labor Force Survey and offer guidance on how to handle the irregularities in population and unemployment statistics that resulted from two particular revisions. First, new population projections were adopted to assign survey weights. Second, a narrower definition of unemployment was adopted. We propose methods to adjust the survey weights for the pre-2014 period in order to discern changes in population statistics by age groups and regions without interruption over time and to calculate the unemployment rates according to both broader and narrower definitions since 2004. / Bu çalışmada TÜİK Hanehalkı İşgücü Anketi’ninde 2014 yılında yapılan düzenlemelerden kaynaklanan bazı sonuçları bulguluyor, nüfus ve işsizlik istatistiklerinde yapılan revizyonların özellikle ikisinden kaynaklanan sorunların nasıl ele alınması gerektiği hakkında yol gösteriyoruz. İlk revizyon, anket ağırlıklarının dayandırıldığı yeni nüfus projeksiyonlarının kabul edilmesidir. İkincisi ise, dar tanımlı bir işsizlik tanımına geçilmesidir. Bu çalışmada 2014 öncesindeki anket ağırlıklarını nüfus istatistiklerinde yaş bazında ve bölgesel olarak kopma olmayacak şekilde yeniden ayarlamak ve işsizlik oranlarını geniş ve dar tanımlı olarak 2004 yılından itibaren hesaplamak için yöntemler öneriyoruz., NA

This paper provides an empirical analysis of firms’ delegation decisions by using a matched employer-employee dataset from Britain. In our analysis, we first investigate if firm-provided training is positively related to delegating authority, as predicted by the existing theories. We then consider variables that can potentially increase the value of delegation. In particular, we conjecture that firms become more likely to delegate authority as they face higher uncertainty or as the employees acquire more precise information. To test these hypotheses, we use market conditions to measure uncertainty and correlates of worker productivity to measure the precision of the employee’s information. / Bu çalışma, Britanya’da oluşturulan eşlenmiş işveren-çalışan veri setini kullanarak, firmaların yetkilendirme (delegasyon) kararlarının ampirik bir analizini sunmaktadır. Analizimizde ilk olarak, mevcut teorilerin öngördüğü üzere firma tarafından sağlanan eğitim ile yetkilendirme kararları arasında pozitif bir ilişkili olup olmadığını araştırıyoruz. Daha sonra, yetkilendirmenin değerini potansiyel olarak artırabilecek değişkenleri ele alıyoruz. Özellikle, daha yüksek belirsizlikle karşılaştıklarında veya çalışanların daha kesin bilgiler edinmelerinin mümkün olduğu ortamlarda firmaların yetkilendirme olasılıklarının arttığı hipotezini test ediyoruz. Bu analizde, belirsizliği ölçmek için piyasa koşullarını kullanırken, çalışanın edinebileceği bilgilerinin kesinliğini ölçmek için ise işçi üretkenliğini etkileyen değişkenleri kullanmaktayız., NA

The value of information regarding risk class for a monopoly insurer and its customers is examined in both symmetric and asymmetric information environments. A monopolist always prefers contracting with uninformed customers as this maximizes the rent extracted under symmetric information while also avoiding the cost of adverse selection when information is held asymmetrically. Although customers are indifferent to symmetric information when they are initially uninformed, they prefer contracting with hidden knowledge rather than symmetric information since the monopoly responds to adverse selection by sharing gains from trade with high-risk customers when low risks are predominant in the insurance pool. However, utilitarian social welfare is highest when customers are uninformed, and is higher when information is symmetric rather than asymmetric.

The paper extends the combined research methods literature with an investigation of the impact of ill health on assets and consumption behaviour of the chronically poor. Focusing on Uganda, and using national household panel data for 1992-99, the study extends the survey by visiting the same households and collecting both life history and further quantitative data. By adopting such an approach we are able to further explain a number of important issues that underly the role ill health plays in the lives of the chronically poor. In particular we find a clear association between sickness and descents into poverty. Asset smoothing seems to be very common amongst households that encounter general sickness, with food consumption almost always reduced, for a period of time, before selling assets. In contrast households suffering from HIV/AIDS, or at least severely physically debilitating sickness, often consumption smooth. Cet article complète la littérature utilisant différentes méthodes de recherche avec une étude de l’impact d’un mauvais état de santé sur les biens et le comportement de consommation des chroniquement pauvres. Ciblée sur l’Ouganda et se basant sur les données d’enquêtes nationales menées sur un échantillon représentatif de ménages en 1992 et en 1999, cette étude a porté sur les mêmes ménages et a collecté des données sur la vie des personnes interrogées et d’autres données quantitatives. Cette approche nous permet de mieux expliquer un certain nombre de points importants qui sous-tendent le rôle qu’un mauvais état de santé joue dans la vie des chroniquement pauvres. Nous avons notamment identifié un lien clair entre la maladie et le basculement dans la pauvreté. Le lissage des biens semble être très fréquent chez les ménages confrontés à la maladie ; ils commencent presque toujours par réduire leur consommation alimentaire, pendant une certaine période, avant de vendre leurs biens. En revanche, les ménages atteints du VIH/SIDA, ou d’une autre maladie physiquement très invalidante, lissent souvent leur consommation. El artículo amplía la documentación existente sobre métodos de investigación combinados con una investigación sobre el impacto de la mala salud en los bienes y en el comportamiento del consumo de los pobres crónicos. Centrándose en Uganda, y utilizando datos del panel de hogares nacionales para 1992-1999, el estudio amplía la investigación visitando las mismas casas y recopilando datos sobre vidas y datos cuantitativos adicionales. Adoptando este enfoque podemos explicar además varias cuestiones importantes subyacentes al papel que juega la mala salud en las vidas de los pobres crónicos. En particular, encontramos una clara asociación entre la enfermedad y la caída en la pobreza. Suavizar los bienes parece ser muy común entre los hogares que se topan con enfermedades comunes, reduciendo casi siempre el consumo de alimentos, por un espacio de tiempo, antes de vender los bienes. En contraposición, en los hogares que sufren VIH/SIDA, o al menos enfermedades graves físicamente debilitadoras, a menudo el consumo se suaviza.

We consider the impact of the 2004 EU enlargement on enterprise performance and the exporting behavior of German service enterprises in Germany’s eastern border region. Our results from regression adjusted difference-in-differences estimators combined with matching and panel data from official statistics suggest that the EU enlargement had a negative impact on the turnover and export intensity of large enterprises in the border region. For small enterprises, we find an annual increase in turnover by 2.3% in 2004 and an annual decrease in profitability by 1.5 and 1.9 percentage points in 2004 and 2005, respectively.

We study the impact of trade on productivity using Chilean plant-level data (1982-1999). Our contribution is to disentangle the impact of export and import barriers. Firstly, we estimate the production functions to obtain plant TFP. Secondly, we estimate trade barriers (border effects) between Chile and its trading partners at the industry level and over time. Finally, we test the impact of trade barriers by regressing productivity on border effect estimates. A fall in export barriers improves productivity in traded sectors, while the reduction of import barriers might foster productivity in export industries but it hurts firms in import-competing ones., Ce travail étudie l'impact des réformes commerciales chiliennes sur l'évolution de la productivité des établissements manufacturiers. Nous utilisons des données de panel micro sur la période 1979-2000. La principale contribution du papier consiste en la construction et l'utilisation de deux types de mesures de la libéralisation commerciale pour distinguer les difficultés à l'exportation et à l'importation. Nous estimons d'abord la productivité totale de facteurs au niveau des établissements en tenant compte de l'hétérogénéité intrinsèque des firmes qui évolue au cours du temps. Ensuite, à l'aide des équations de gravité nous estimons pour chaque industrie les effets des frontières entre le Chili et ses principaux partenaires. Enfin nous estimons l'impact de la libéralisation du commerce extérieur en utilisant les mesures estimées dans l'étape précédente. Nous trouvons que la réduction des difficultés à l'exportation a un effet positif sur la productivité dans les secteurs exposés au commerce relativement aux secteurs abrités. Par ailleurs, par rapport à ces derniers, les firmes appartenant aux secteurs exportateurs augmentent leur productivité à la suite d'une réduction des barrières à l'importation. Ce n'est pas le cas pour les firmes opérant dans les secteurs en concurrence avec les biens d'importations dans les quels les estimations des fonctions des productions révèlent des rendements croissants.

International audience; We study linear factor models under the assumptions that factors are mutually independent and independent of errors, and errors can be correlated to some extent. Under the factor non-Gaussianity, second-to-fourth-order moments are shown to yield full identification of the matrix of factor loadings. We develop a simple algorithm to estimate the matrix of factor loadings from these moments. We run Monte Carlo simulations and apply our methodology to data on cognitive test scores, and financial data on stock returns.

International audience; Vector autoregressions (VARs) are important tools in time series analysis. However, relatively little is known about the finite-sample behaviour of parameter estimators. We address this issue, by investigating ordinary least squares (OLS) estimators given a data generating process that is a purely nonstationary first-order VAR. Specifically, we use Monte Carlo simulation and numerical optimisation to derive response surfaces for OLS bias and variance, in terms of VAR dimensions, given correct specification and several types of over-parameterisation of the model: we include a constant, and a constant and trend, and introduce excess lags. We then examine the correction factors that are required for the least squares estimator to attain the minimum mean squared error (MSE). Our results improve and extend one of the main finite-sample multivariate analytical bias results of Abadir, Hadri and Tzavalis [Abadir, K.M., Hadri, K., Tzavalis, E., 1999. The influence of VAR dimensions on estimator biases. Econometrica 67, 163-181], generalise the univariate variance and MSE findings of Abadir [Abadir, K.M., 1995. Unbiased estimation as a solution to testing for random walks. Economics Letters 47, 263-268] to the multivariate setting, and complement various asymptotic studies.