This paper evaluates how different lengths of entry regulation impact market structure and market performance using a dynamic structural model. We formulate an oligopoly model in the tradition of Ericson and Pakes (1995) and allow entry costs to vary over time. Firms have the opportunity to...

Controls on human mobility and efforts to undermine them continue to shape South Africa’s politics, economy, and society. Despite the need for improved policy responses to human mobility, reform is hindered by lack of capacity, misinformation, and anti-migrant sentiments within and outside of...

The new century opened with an unprecedented declaration of solidarity and determination to rid the world of poverty. In 2000 the UN Millennium Declaration, adopted at the largest-ever gathering of heads of state, committed countries — rich and poor — to doing all they can to eradicate...

The 1998 Report investigates the 20th century's growth in consumption, unprecedented in its scale and diversity. The benefits of this consumption have spread far and wide. More people are better fed and housed than ever before. Living standards have risen to enable hundreds of millions to enjoy...

Politics matter for human development. Reducing poverty depends as much on whether poor people have political power as on their opportunities for economic progress. Democracy has proven to be the system of governance most capable of mediating and preventing conflict and of securing and...

This paper elaborates on the recent race to sequence the human genome. Starting from the debate on public vs. private research arising from the genome case, the paper shows that in some fundamental research areas, where knowledge externalities play an important role, market and non-market...