This Paper analyses the impact of R&D subsidies on incumbent firms to introduce new goods. We are especially interested in investigating various consequences of government subsidies for R&D, provided to firms that offer products of different qualities. This study examines the incentives of...

We consider an endogenous growth model that includes international trade in capital goods. The model yields several distinct balanced growth solutions that can be classified using stability under adaptive learning. Some of the equilibria can involve growth rates much higher (or lower) than...

We examine a model of R&D competition and cooperation in the presence of spillovers. Unlike virtually all the literature, however, we treat these spillovers as endogenous and under the control of firms. We show that it is then essential to make a number of distinctions that are ignored in the...

The paper surveys the interactions between aid and trade, distinguishing between policies and outcomes as well as between various instruments. It first discusses the theoretical literature, focusing on the causal impact of aid on the recipient’s welfare via the trade channel, before turning to...

This paper is a practical guide (a toolkit) for researchers, students and practitioners wishing to introduce randomization as part of a research design in the field. It first covers the rationale for the use of randomization, as a solution to selection bias and a partial solution to publication...

This paper uses survey data from 13 countries to document the economic lives of the poor (those living on less than $2 dollar per day per capita at purchasing power parity) or the extremely poor (those living on less than $1 dollar per day). We describe their patterns of consumption and income...

This paper documents a stylized fact not well appreciated in the literature. The Third World has been undergoing an emigration life cycle since the 1960s, and, except for Africa, emigration rates have been level or even declining since a peak in the late 1980s the early 1990s. The current...

The aim of this paper is to explain why time use data are essential for analyzing issues of gender equity and the intra-household allocation of resources, for comparing living standards and for estimating the behavioral effects of changes in policy variables. The first step in the exposition is...