The level of entrepreneurship differs considerably across countries and periods. Both thecauses and consequences of entrepreneurship are a matter of extensive scientific debate aswell as of great policy importance. A high level of entrepreneurial activity is assumed andshown to contribute to...

The economic expansion of the late 1990s created many opportunities for business creation in Silicon Valley, but the opportunity cost of starting a business was also high during this period because of the exceptionally tight labor market. A new measure of entrepreneurship derived from matching...