Nearly 75 years ago, John Hicks introduced and formalized the concept of the elasticity of substitution between capital and labour and its relation to derived demand. The resulting formula has proven very useful in understanding the derived demand for productive factors, the distribution of...

This note uses insights from cointegration analysis to reexamine two separate but related issues concerning the estimation of production function parameters. Fisher (1971) documented a paradox in estimating substitution elasticities

Large and sustained differences in marginal products of capital (MPKs) across countries are sharply at odds with the core implications of the neoclassical framework. Lucas (1990) and many subsequent studies have examined reasons for this MPK differential. In a recent contribution, Caselli and...

The value of the elasticity of substitution between labor and capital (σ) is a crucial assumption in the study of factor incomes (e.g., Piketty (2014a), Piketty and Zucman (forthcoming), Karabarbounis and Neiman (2014)) and long-run growth (Solow, 1956). This paper begins by examining the role...

We investigate the impact of health aid on infant mortality conditional on the quality of governance in 96 recipient countries. Our analysis applies the long difference estimator and instrumental variable estimation, with aid instrumented by donor government fractionalization interacted with the...

This paper studies the marginal product of private capital (MPK) with new data and a new framework to obtain a better understanding of international capital allocations and the Lucas Paradox (LP). Our point of departure is three influential studies of MPK’s and, based on the most recently...

In discrete choice models the marginal effect of a variable of interest that is interacted with another variable differs from the marginal effect of a variable that is not interacted with any variable. The magnitude of the interaction effect is also not equal to the marginal effect of the...

We examine how mehr, a conditional payment from husbands to wives in the event of divorce, and dowry, a transfer from bride families to grooms at the time of marriage, have evolved through natural shocks. We develop a model of marriage market in which dowry acts as a groom price, whereas mehr...

This paper examines the effects of tourism in a dynamic model of trade on unemployment, capital accumulation and resident welfare. A tourism boom improves the terms of trade, increases labor employment, but lowers capital accumulation. The reduction in the capital stock depends on the degree of...

Tourism has been regarded as a major source of economic growth and a good source of foreign exchange earnings. Tourism has also been considered as an activity that imposes costs on the host country. Such costs include increased pollution, congestion and despoliation of fragile environments and...