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Working Paper
Firm Entry and Macroeconomic Dynamics: A State-level Analysis
Using an annual panel of US states over the period 1982-2014, we estimate the response of macroeconomic variables to a shock to the number of new firms (startups). We find that these shocks have significant effects that persist for many years on real GDP, productivity, and population. This result is consistent with simple models of firm dynamics where a ?missing generation? of firms affects productivity persistently.
Working Paper
Boom Town Business Dynamics
The shale oil and gas boom in the U.S. provides a unique opportunity to study economic growth in a "boom town" environment, to derive insights about economic expansions more generally, and to obtain clean identification of the causal effects of economic growth on specific margins of business adjustment. The creation of new business establishments--separate from the expansion of existing establishments--accounts for a disproportionate share of the multi-industry employment growth sparked by the shale boom, an intuitive but not inevitable empirical result that is broadly consistent with ...
Working Paper
Entry, Variable Markups, and Business Cycles
The creation of new businesses declines in recessions. In this paper, I study the effects of pro-cyclical business formation on aggregate employment in a general equilibrium model of firm dynamics. The key features of the model are that the elasticity of demand faced by firms falls with their market share and that adjustment costs slow the reallocation of employment between firms. In response to a decline in entry, incumbent firms' market shares increase, their elasticity of demand falls, and they increase their markups and reduce employment. To quantify the model, I study the relationship ...