Foreign Aid: Good for Investment,Bad for Productivity

Abstract

This paper examines the effects of aid on sources of growth: capital accumulation and total factor productivity (TFP) growth; the latter captures the effect on growth after removing the contribution of factor accumulation. Given the role of TFP in explaining cross-country differences in income levels and growth rates, the productivity effect can play a significant role in explaining the impact of aid on growth. Contradictory effects of aid were found: aid boosts investment but adversely affects TFP, suggesting that efficiency losses may undermine the overall effects of aid on growth. It was also found that aid reduces the efficacy of financial institutions in supporting productivity growth, a surprising result that possibly illuminates the nature of aid distribution in receiving countries.     

First-Order Approach to Principal-Agent Problems: A Generalization

The first-order approach (FOA) to principal agent problems is very convenient and mathematically tractable. However, existing results show that the FOA is valid only for additively separable utility functions. This is somewhat limiting. In this article sufficient conditions are identified that extend the validity of the FOA to nonseparable cases. The additional conditions involve restrictions on the agent's preferences, particularly interactions between action and the wage contract. These conditions imply that leisure is normal and the agent's absolute risk aversion increases with action. Comparative static results regarding the wage contract and its gradient are also discussed.     

Wage returns to education in Ethiopia

ABSTRACT

In this paper, we aim to provide robust estimates of wage returns to education in Ethiopia. Previous estimates vary widely based on the scope and size of the study sample, variables employed, and estimation method. We use two recent rounds of national labour force survey data and a pseudo- (or synthetic) panel framework to address the well-known potential endogeneity of schooling in wage regressions. Birth-year cohort based pseudo-panel estimate of the return to an additional year of education is between 14 percent and 16 percent, 4 to 5 percentage points higher than that from ordinary least squares (OLS). The significant downward bias in OLS is further confirmed by two-year pseudo-panel estimates and remains robust, to a large extent, as we use an alternate model, change the estimation sample, and address selection bias concurrently with endogenous schooling using a novel approach. We discuss some possible explanations in the context of Ethiopia.     

Parental Education and Children's School and Work Status in Urban Ethiopia: A Note on Gender Bias

This paper examines gender bias in the parental education–child status link using data from urban Ethiopia. Gender bias is defined here, specifically, as the differential impact of a parent's education on a child's status depending on the gender of the parent vis‐à‐vis the child. Children's status is measured by school enrolment and participation in market work. Results from a basic model point to same‐gender bias – father–son, mother–daughter in school enrolment and father–son in market work. In an extended model, results show that father–son bias in market work may be particularly pertinent for middle‐ to later‐born children. Policy interventions should be mindful of such differential effects, particularly if the aim is to address persistent gender disparities in children's status.     

Aid,Policies, and Growth in Developing Countries: A New Look at the Empirics

The relationship between foreign aid and economic growth has been the subject of much controversy. A recent theme suggesting that aid promotes growth, but only in a good policy environment has ratcheted up that debate. In this paper, we assess the importance of policy and aid in generating growth when the aid, policy, and growth relationship is nonlinear. This allows us to examine the varying effects of aid and policy in different data segments, which we do without imposing any particular structure on the underlying relationship. We find that policy is an important determinant of growth. We also find partial corroboration of the view that aid is growth enhancing in a good policy environment, and some evidence of diminishing returns to aid. These findings suggest that nonlinearities if not appropriately addressed fail to capture the detailed underlying dynamics and thereby mask some key features of the aid-policy-growth relationship.     

Sibling Differences in School Attendance and Child Labour in Ethiopia

This paper examines the effects of sibling composition on children's school attendance and participation in market and domestic work in Ethiopia. The major finding is that earlier-born males in rural areas are more likely to attend school than their younger siblings. A similar effect is apparent for rural females and urban children as well, though it is not as robust to varying estimation methods and sensitivity tests. In both areas, the chances of participation in market work are higher for older children, particularly males, while in domestic work, which remains largely the domain of female children, being an earlier-born girl also increases the odds of working. These effects of birth order on work are largely unaffected by the gender of the younger siblings or by the age difference with the last child.     

Three departures from maximizing behavior and their Keynesian features: a simple exposition

Summary This exposition addresses three reasonable departures from fully maximizing behavior that exhibit important Keynesian features. These departures involve inertial, imitative, and error-conscious behaviors. A simple general frame-work is used to model the three departures in an otherwise fully optimizing model. This makes transparent the differences in the underlying mechanisms and the sources of the Keynesian results.I would like to thank an anonymous referee for helpful comments.     

Do Patent Protection and Technology Transfer Facilitate R&D in Developed and Emerging Countries? A Semiparametric Study

This paper examines if patent protection and technology transfer facilitate R&D in a sample that includes both developed and emerging countries. A semiparametric model is used to estimate the relevant parameters using country level data from 21 countries, of which six are emerging, for the period 1981–1997. The results suggest thresholds in patent protection and technology transfer: patent protection has a positive effect which weakens at high levels of protection, and FDI has a positive effect only if the country depends heavily on FDI.