a r t i c l e i n f o This paper examines the effects of conversion of one type of physical trade restrictions into another on the intra-country wage inequality in a standard 2 × 2 × 2 Heckscher–Ohlin–Samuelson model. It shows that a conversion of an import-quota into an equivalent voluntary export restraint raises wage-inequality in the country importing the unskilled-labor intensive good and ...

Conventional trade theory, which combines the Heckscher-Ohlin theory and the Stolper-Samuelson theorem, implies that expanded trade between developed and developing countries will increase wage equality in the former. Th is theory is widely applied. It serves as the basis for estimating the impact of trade on wages using two-sector simulation models and the net factor content of trade. It leads...

The relationship between trade expansion and environmental protection has been characterised by two extreme viewpoints – promoting trade worsens environmental conditions and higher environmental standards impose an economic cost. Two conflicting hypothesis emerge from the debate. One manifestation of the above-described trade off is the hypothesis that increasing trade may encourage developing ...

medical texts. It is one of the major resources in measuring the shifts in perception present within systems that claim to represent the "realities" of the world. It is thus not merely of interest to parallel one world of aesthetic objects to another (as Glandien does in his work on Messerschmidt and his influence in contemporary art) or to draw the internal history of the function of photograp...

There is little disagreement among most economists that countries benefit from trade liberalization. Yet, whether unilateral, multilateral (through the World Trade Organization) or through regional integration agreements (RIAs), trade liberalization has been one of the most controversial economic issues of our time. It is the focus of everyone from politicians to union leaders and anti-globaliz...

Study of the factor content of trade has become a laboratory to test our ideas about how the key elements of endowments, production, absorption and trade fit together within a general equilibrium framework. Already a great deal of progress has been made in fitting these pieces together. Nevertheless, the existing research raises a great many questions that should help to focus empirical researc...

Leamer and Levinsohn (1995) have recently proposed a formula for empirical work in international microeconomics summarized by the injunction to “Estimate, Don’t Test!” This is based on a perception that much of the empirical work has failed to be influential as it tests propositions we know ex ante to be false. We argue that the empirical work has been more influential than they suggest. We use...

The aggregated incidence of bilateral trade costs is derived from the gravity model. Incidence is equivalent to a TFP penalty. Sectoral and national differences in TFP have sharp implications for the equilibrium pattern of production and trade in a specific factors model of production. Unskilled labor is intersectorally mobile. Skilled labor acquires sector specific skills. Productivity shocks ...

Study of the factor content of trade has become a laboratory to test our ideas about how the key elements of endowments, production, absorption and trade fit together within a general equilibrium framework. Already a great deal of progress has been made in fitting these pieces together. Nevertheless, the existing research raises a great many questions that should help to focus empirical researc...

ED FROM Gevensleben H, Holl B, Albrecht B, et al. Is neurofeedback an effi cacious treatment for ADHD? A randomised controlled clinical trial. J Child Psychol Psychiatry 2009;50:780–9. Correspondence to: Hartmut Heinrich, Heckscher-Klinikum, Deisenhofener Strasse 28, D-81539 Munich, Germany; [email protected] Sources of funding: German Research Foundation. Gevensleben and colleagues describe a m...