One approach to urban areas emphasizes the existence of certain immutable relationships, such as Zipf's or Gibrat's Law. An alternative view is that urban change reflects individual responses to changing tastes or technologies. This paper examines almost 200 years of regional change in the U.S....

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...