This paper reviews academic research on the connections between agglomeration and innovation. We first describe the conceptual distinctions between invention and innovation. We then discuss how these factors are frequently measured in the data and note some resulting empirical regularities....

Jerry Carlino points out that the fortunes of local economies usually depend on a confluence of national, sectoral, and local shocks. That, in turn, raises the question: Does one type of shock systematically buffet local economies more than another? The answer has important implications for both...

Metropolitan areas in the U.S. contain almost 80 percent of the nation’s population and nearly 85 percent of its jobs. This high degree of spatial concentration of people and jobs leads to congestion costs and higher housing costs. To offset these costs, workers must receive higher wages, and...

T he United States is home to some of the most innovative companies in the world, such as Apple, Facebook, and Google, to name a few. Inventive activity depends on research and development, and R&D depends on, among other things, the exchange of ideas among individuals. People’s physical...

In the U.S., metropolitan areas contain the largest concentrations of people and jobs. Despite some drawbacks, these so-called agglomeration economies also have benefits, such as the cost savings that result from being close to suppliers and workers. Spatial concentration is even more pronounced...

During the first half of the 20th century, people and jobs in the United States moved from rural to urban areas. After World War II, the U.S. saw other important shifts, including deconcentration - the movement of people and jobs from large, dense MSAs to small, less dense ones. This article...

Do the proportion of interest-sensitive industries, the number of small firms, and the concentration of small banks determine how monetary policy influences state economies? In this article, Jerry Carlino and Bob DeFina extend to the state level their earlier study that looked at these factors...