Cities experience significant, near random walk productivity shocks, yet population is slow to adjust. In practise local population changes are dominated by variation in net migration, and we argue that understanding gross migration is essential to quantify how net migration may slow population...

We develop a dynamic general equilibrium model of economics development with altruism in which the evolution of the extent of entrepreneurship, the rate of rural-urban migration, the scale and structure of production and the degree of income and wealth inequality are endogenously determined. The...

We develop a Shumpeterian theory of business cycles that relates job creation, job destruction and wages over the cycle to the processes of firm restructuring, innovation and implementation that drive long-run growth. Due to incentive problems, production workers are employed via relational...

We develop a model of "intrinsic" business cycles, driven by the decentralized behaviour of entrepreneurs and firms making continuous, divisible improvements in their productivity. We show how equilibrium cycles, associated with strategic delays in implementation and endogenous innovation, arise...

We use a Schumpeterian model in which both the economy's growth rate and its volatility are endogenously determined to assess some welfare and policy implications associated with business cycle fluctuations. Because it features a higher average growth rate than its acyclical counterpart,...

This paper uses individual-level data to characterize economy-wide job creation and destruction during periods of massive structural adjustment. We contrast the gradualist Czech and the rapid Estonian approach to the destruction of the communist economy to provide evidence on selected...

Africa has come a long way since the economic turmoil of the 1980s, the decade of "structural adjustment". Growth has been strong, yet poverty remains high. Underlying the shortage of good livelihoods and high social inequality is the lack of diversification in Africa's economies-in contrast to...

We describe a rational expectations model in which speculative bubbles in house prices can emerge. Within this model both speculators and their lenders use interest-only mortgages (IOs) rather than traditional mortgages when there is a bubble. Absent a bubble, there is no tendency for IOs to be...

Africa has come a long way since the economic turmoil of the 1980s, the decade of "structural adjustment". Growth has been strong, yet poverty remains high. Underlying the shortage of good livelihoods and high social inequality is the lack of diversification in Africa's economies-in contrast to...

This essay reviews the relationship between natural-resource abundance and economic growth around the world, and presents some new results. The principal reasons why resource-based production can inhibit economic growth over long periods are traced to the Dutch disease, neglect of education,...