Estimates of technical inefficiency in stochastic frontier models with panel data: generalized panel jackknife estimation

Estimates of technical inefficiency based on fixed effects estimation of the stochastic frontier model with panel data are biased upward. Previous work has attempted to correct this bias using the bootstrap, but in simulations the bootstrap corrects only part of the bias. The usual panel jackknife is based on the assumption that the bias is of order T ⁻¹ and is similar to the bootstrap. We show that when there is a tie or a near tie for the best firm, the bias is of order T ^−1/2, not T ⁻¹, and this calls for a different form of the jackknife. The generalized panel jackknife is quite successful in removing the bias. However, the resulting estimates have a large variance.     

The permanent income hypothesis in five major industrial countries: a multivariate trend-cycle decomposition test

This paper presents a new test of the permanent income hypothesis in five major industrial countries. The test first decomposes consumption and income into their long run trend (permanent) and short run cyclical (transitory) components, using the recently developed multivariate stochastic detrending approach developed by Vahid and Engle (1997), among others. This approach exploits the presence of possible common stochastic trends and cycles among the variables in the system to arrive at a more efficient decomposition of these variables. Using the decomposition results, and in contrast to many articles in the literature, the paper finds support for the permanent income hypothesis. Specifically, the paper finds that, while permanent consumption is related to permanent income, transitory consumption is related to neither permanent nor transitory income.

Financial development and productive efficiency: A panel study of developed and developing countries

This paper uses a stochastic production frontier for panel data to investigate the effect of financial development on productive efficiency. Three panels of a number of countries in different stages of development are used along with eight alternative measures of financial development pertaining to the monetary sector, financial intermediaries, and equity markets. The results indicate that in general the more developed the financial intermediaries sector and equity markets, the higher the productive efficiency. In particular, financial deepening reduces productive inefficiency in both developed and developing countries, although the effect is larger in the former. The author wishes to thank three anonymous referees for their many helpful comments on an earlier version of this paper. All remaining errors are the author's responsibility. A slightly different version of this paper was presented at the 50th annual conference of the International Atlantic Economic Society, Charleston, South Carolina, October 2000. This research is partially funded by a Marquette University College of Business Administration Faculty Research Grant from the Miles Fund and a grant from Marquette University Institute for International Economic Affairs.     

Exponential structure of income inequality: evidence from 67 countries

Journal of Economic Interaction and Coordination - Economic competition between humans leads to income inequality, but, so far, there has been little understanding of underlying quantitative...     

Financial development and economic growth: an empirical evidence from the GCC countries using static and dynamic panel data

This paper contributes to the existing empirics of finance-growth nexus of all GCC countries with new results based on a larger dataset and longer time period 1975–2012, incorporating additional control variables, FDI, interaction term of FDI & financial development variables, and oil production. We employed four estimation techniques, Pooled OLS, Fixed effect estimation, Random effect estimation, and the system GMM estimation and used static and dynamic panel data. We obtain a robust finding of consistently a positive effect of financial sector development (FSD) on economic growth of GCC region with implication that a substantial improvement in FSD was in place. The results indicate that FDI, Fixed capital formation and oil production contribute positively to the economic growth of this region. The study results signify for a continuity of the on-going financial reform process, supervision & monitoring exercises to bring hitherto more dividends to the GCC economies.     

Sweatshops,Opportunity Costs,and Non‐Monetary Compensation: Evidence from El Salvador1

Using evidence from field interviews, this article examines the alternative employment opportunities of thirty‐one sweatshop factory workers in El Salvador and their perceptions about what types of non‐monetary benefits they receive in their current employment. Interview subjects provide insights into the benefits of their own and peers' employments, their next‐best alternative employment, and other aspects of total compensation. We find that workers perceive factory employment to provide more desirable compensation along several margins.     

城市低收入社区参与型改造的理念与实践——发展中国家的经验和启示

回顾、总结了城市社区改造理念的变化及其发展历程,结合典型事例介绍并分析了发展中国家低收入社区的参与型社区改造在项目手法、开发方式上的阶段性特点,从社会、经济、政治的多维视角总结了参与型社区改造的经验,并揭示了其对中国社区改造的启示意义.     

Women and corruption: evidence from multinational panel data

In this paper we investigate whether the ratio of female population is related with lower corruption, utilizing a multinational panel data with 80 countries for the period 2000–2012 and employing the Generalized Method of Moments as well as the ordered probit regression methods. This is the first study on the impacts of different female groups on corruption. Overall speaking, the estimation results are pluralistic. Higher female ratios in the legislative branch and in the labor force are significantly associated with a lower level of corruption, while the female ratio in secondary enrollment is positively related with corruption; however, the female ratio of the whole population has insignificant impacts on corruption. The policy implications are that a simple enhanced female ratio and educational level are not the effective way to inhibit corruption in our sample countries, whereas improvements of the female ratio in the legislative branch and the labor force contribute to controlling corruption. These results are basically robust for the two estimation methods and for the two subsamples of developed and developing countries. As a result, the estimation results on the relationship between corruption and gender might vary remarkably when different indicators for the female groups are utilized, which should some light on future studies.     

Nonresponse in panel data: The impact on estimates of a life cycle consumption function

If missing observations in a panel data set are not missing at random, many widely applied estimators may be inconsistent. In this paper we examine empirically several ways to reveal the nature and severity of the selectivity problem due to nonresponse, as well as a number of methods to estimate the resulting models. Using a life cycle consumption function and data from the Expenditure Index Panel from the Netherlands, we discuss simple procedures that can be used to assess whether observations are missing at random, and we consider more complicated estimation procedures that can be used to obtain consistent or efficient estimates in case of selectivity of attrition bias. Finally, some attention is paid to the differences in identification, consistency, and efficiency between inferences from a single wave of the panel, a balanced sub-panel, and an unbalanced panel.     

Equilibrium exchange rates in transition countries: Evidence from dynamic heterogeneous panel models

We use a dynamic heterogeneous panel model to estimate real equilibrium exchange rates for advanced transition countries. Our method is based on out-of-sample estimations from middle-income and high-income countries, and we use a Pooled Mean Group estimator. We find that exchange rates in the Czech Republic, Poland, and Slovakia have converged in recent years with real equilibrium exchange rates expressed in the US dollars. Yet, in 2002, they were overvalued in Hungary but undervalued in Slovenia. We also find that the currencies of the transition countries studied, except Slovenia, were overvalued in 2002 if real effective exchange rates were used. In particular, the Hungarian currency was found to have the largest extent of misalignment.     

Financial reforms and money demand: Evidence from 20 developing countries

The effects of financial reforms on money demand (M1) are analysed with estimates for two sets of sub-samples and two break dates for twenty developing Asian and African countries. In all cases, the magnitude of income elasticity does not change significantly when compared with sub-samples and whole sample periods. Using CUSUM and CUSUMSQ tests, we find that the demand for money functions in our selected countries are temporally stable and therefore the respective monetary authorities may target money supply as the conduct of monetary policy.     

Small sample considerations in estimation from panel data

Recent interest in statistical inference for panel data has focused on the problem of unobservable, individual-specific, random effects and the inconsistencies they introduce in estimation when they are correlated with other exogenous variables. Analysis of this problem has always assumed the variance components to be known. In this paper, we re-examine some of these questions in finite samples when the variance components must be estimated. In particular, when the effects are uncorrelated with other explanatory variables, we show that (i) the feasible Gauss-Markov estimator is more efficient than the within groups estimator for all but the fewest degrees of freedom and its variance is never more than 17% above the Cramer-Rao bound, (ii) the asymptotic approximation to the variance of the feasible Gauss-Markov estimator is similarly within 17% of the true variance but remains significantly smaller for moderately large samples sizes, and (iii) more efficient estimators for the variance components do not necessarily yield more efficient feasible Gauss-Markov estimators.     

Internet usage and the shadow economy: Evidence from panel data

The enormous spread of the internet in the last 20 years has been having various economic consequences. In this paper I ask whether the spread of the internet aided or abetted the shadow economy. To this end, using a panel data of 152 countries over 9 years from 1999 to 2007, I examine the empirical relationship between the degree of internet usage and the size of the shadow economy. Panel and cross-section estimation results indicate that the association between internet usage and shadow economy size strongly interacts with GDP per-capita. I also suggest and then empirically test an economic mechanism to account for this observation.