We examine the contribution of human capital to economy-wide technological improvements through the two channels of innovation and imitation. We develop a theoretical model showing that skilled labour has a higher growth-enhancing effect closer to the technological frontier under the reasonable...

We consider a model of policy choice in which appropriate policies depend on a country’s own circumstances, but the presence of a successful leader generates an informational externality and results in too little ‘policy experimentation’. Corrupt governments are reined in while honest...

This paper integrates in a unified and tractable framework some of the key insights of the field of international trade and economic growth. It examines a sequence of theoretical models that share a common description of technology and preferences but differ on their assumptions about trade...

Because of its inappropriability, protection of property rights is widely recognized as being the state’s responsibility. Moreover, recent empirical evidence suggests that it leads to higher investment levels and faster growth. Nevertheless, the extent of property rights protection differs...

We study the joint dynamics of economic and political change. Predictions of the simple model that we formulate in the paper get considerable support in a panel of data on political regimes and GDP per capita for about 150 countries over 150 years. Democratic capital - measured by a nation's...

Can the increasing significance of knowledge-products in national income---the growing weightless economy---influence economic development? Those technologies reduce ``distance'' between consumers and knowledge production. This paper analyzes a model embodying such a reduction. The model shows...