Searching for a Kuznets curve in environmental efficiency using kernel estimation

Cataloged from PDF version of article.The paper constructs environmental efficiency indexes for a sample consisting of high- and low-income countries using nonparametric production frontier techniques and then establishes an environmental Kuznets relationship for environmental efficiency by Nadaraya-Watson kernel estimation methodology. (C) 2000 Elsevier Science S.A. All rights reserved. JEL classification: Q25; Q32

The role of international trade on environmental efficiency

Cataloged from PDF version of article.The relationship between trade and environmental conditions receives considerable attention whenever countries are in the process of negotiating trade agreements. In this paper using a non-parametric non-stochastic production frontier approach, we first develop an environmental efficiency index for a sample of high income and low and middle income countries and then examine the role of trade on the changes in environmental efficiency. The paper shows that, in addition to the per capita income which exhibits an environmental Kuznets type relationship, trade-related variables such as trade composition, the share of polluting exports and openness of a country are important determinants of environmental efficiency. (C) 2001 Elsevier Science B.V. All rights reserved. JEL classifications: Q32; Q25; F43

Catching-up and innovation in high and low income countries

Cataloged from PDF version of article.The study utilizes a variant of the Malmquist Productivity Index computed by nonparametric linear programming techniques to empirically investigate the catching-up hypothesis for a group of high- and low-income countries. The results show that the countries with low initial per capita income levels catch up at a faster rate while countries with relatively high income depend more on technological progress for their productivity increases

The Kuznets curve and the effect of international regulations on environmental efficiency

This paper extends the results of series of papers, i.e., Zaim (2004) and Yörük and Zaim (2005a, 2005b). We construct an environmental efficiency index for OECD countries and establish an environmental Kuznets curve relationship between environmental efficiency and income. We then investigate the effect of an international protocol on reducing global emissions on the environmental efficiency

Environmental efficiency in carbon dioxide emissions in the OECD: A non-parametric approach

The role of the environment is an important issue in the policy-making and hence, the accurate assessment of the environmental conditions is vital. In this paper, an environmental efficiency index is developed for the OECD countries using non-parametric techniques. The approach adopted is based on the assumption that there is just one production process behind the production of both goods and pollution emissions. The index derived in this work measures the extent of the required output sacrifice, due to the transformation of the production process, from one where all outputs are strongly disposable to the one which is characterized by weak disposability of pollutants. Using this index, we first conduct cross-section comparisons on the state of each country's production process in its treatment of pollution emissions. We then trace each country's modification of their production processes overtime. The results indicate that if the disposability for CO2 emissions were strictly restricted as the result of an environmental regulation, the total value of output loss to the OECD countries as a whole would correspond to 3.7, 4.8 and 3.5% of the total OECD GDP for 1980, 1985 and 1990, respectively. © 2000 Academic Press

Measuring the quality of life in European Union: The case of Turkey as a candidate country

This paper is aimed at measuring and comparing the quality of life in European Union (EU) and Turkey as an important candidate country on the process of integrating with the EU. Rather than using per capita income as a classical measure, this study uses social indicators of development as a measure of well-being. Instead of using human development index (HDI) - an index commonly referred as "deprivation index" - we adopt the indices that are developed in Zaim, Fare and Grosskopf. The "achievement index" measures the success of a country in the provision of standard of life. On the other hand "improvement index" is used to measure the improvement of the country over time in terms of its life quality. The stated results suggest that Turkey should improve its quality of life on the way of integrating with the EU

Temporal lobe epilepsy and postural orthostatic tachycardia syndrome (POTS)

We describe a 20-year-old woman suffering from right temporal epilepsy, behavioral disorder, and a complaint of paroxysmal palpitations accompanied by anxiety. Detailed cardiac evaluation revealed that the palpitations were due to episodes of marked sinus tachycardia secondary to a concomitant postural orthostatic tachycardia syndrome (POTS) and not of psychogenic origin as initially thought. Treatment with a beta-blocker resulted in the disappearance of palpitations and the associated anxiety. This is the first report of the coexistence of partial epilepsy and POTS. The recognition of such a syndrome in epileptic patients is important in order to offer appropriate therapy

An economic approach to achievement and improvement indexes

This study proposes a useful alternative to the "aggregate deprivation index" which is used to measure the well-beings of individuals in different countries or geographic locations. Furthermore, we also propose an improvement index which alleviates well known difficulties associated with overtime comparisons of "aggregate deprivation index". While deriving our indexes, we pursued an economic approach to index numbers theory and relied on the assumptions of optimizing behavior. The proposed achievement index has its roots in the theory of quantity indexes whose axiomatic properties are well established. The roots of our improvement index on the other hand, is well grounded in the productivity growth literature. The study also provides a numerical example