We study a model of endogenous growth where firms invest both in product and process innovations. Product innovations (that open up completely new product lines) satisfy the advanced wants of the rich. Subsequent process innovations (that decrease costs per unit of quality) transform the...

We analyze a macroeconomic model of monopolistic competition in which consumers earn unequal incomes. When preferences are non-homothetic, the distribution of income affects equilibrium mark-ups and equilibrium product diversity.

We study international trade in a model where consumers have non-homothetic preferences and where household income restricts the extensive margin of consumption. In equilibrium, monopolistic producers set high (low) prices in rich (poor) countries but a threat of parallel trade restricts the...

We present a model in which two of the most important features of the long-run growth process are reconciled: the massive changes in the structure of production and employment; and the Kaldor facts of economic growth. We assume that households expand their consumption along a hierarchy of needs...

We utilize Schmookler’s (1966) concept of demand-induced invention to study the role of income inequality in an endogenous growth model. As rich consumers can satisfy more wants than poor consumers, both prices and market sizes for new products, as well as their evolution over time, are...

This paper develops basic algebraic concepts for instrumental variables (IV) regressions which are used to derive the leverage and influence of observations on the 2SLS estimate and compute alternative heteroskedasticity-consistent (HC1, HC2 and HC3) estimators for the 2SLS covariance matrix in...

This paper studies the effect of financial booms and extreme asset valuations on the relative demand for skills and the wage structure. The substantial rise in wage inequality in the U.S. since the late 1970s has been accompanied by a major expansion of financial services, a series of asset...

This paper presents an attempt to create competition in the water market by means of direct competition. We argue that the usual liberalisation device, competition for the market by franchise bidding, is problematic due to the particular features of the water industry. Our approach proposes the...

We explore the role of the ownership structure of capital in an economy that suffers from barriers to entry and an imperfect financial system. In such an environment, an unequal distribution of capital provides an explanation for trade flows and trade gains even when countries do not differ in...

We explore the impact of non-collusive corruption on factor rewards and on the wealth distribution. We show that the distributional consequences depend crucially on the degree of capital market imperfections. With perfect capital markets, corruption does not redistribute wealth within the...