For at least the past 30 years, the rate of U.S. business formation has been falling and the average age of existing firms has been rising. Since 2000, two other things have happened: productivity growth has slowed, while many skilled jobs have disappeared. Startups are thought be a key source of innovation in the economy and of net job creation. At the same time, as Schumpeter’s notion of creative destruction suggests, the death of old firms is a critical part of the renewal process. So, the declining trend of entry and exit has people worried that U.S. business dynamism is ebbing (see our earlier post).

How concerned should we be? To be completely honest, we don’t really know; at least, not yet. But the answer is important, because it can help orient the U.S. economic policy framework to support the creation of successful businesses that generate high-quality jobs. In this post, we summarize some new research aimed at helping us understand what the decline in business formation really means. Does it signal a fall in the number of successful firms that contribute substantially to business value added, productivity, and employment? Or, is it a decline in the formation of firms that never exceed a tiny scale and have little impact on the broader economy?