This paper quantifies the roles of increases in the demand for skill-intensive output, the efficient scale of service production, and female labor supply in the growth of services. We extend the Buera and Kaboski (2012a,b) model to a two-person household, incorporating a joint decision on home...

This study develops a model of endogenous growth based on increasing returns due to firms' technology choices. Particular attention is paid to the implications of these choices, combined with the substitution of capital for labor, on economic growth in a general equilibrium model in which the...

An increase in the size (scale) of an economy increases the total quantity of rents that can be captured by successful innovators which, in equilibrium, should lead to a rise in innovative activity. Conventional wisdom and the theoretical predictions of models of endogenous innovation suggest...

Measures of productivity growth typically include in the Productivity "residual" the impacts of subequilibrium from fixity of factors, costs of adjustment, returns to scale and markups. This paper proposes a general two part framework for adjusting the residual measure to take these impacts into...

We develop and test a theory of firm size and scope centered on standardization: the extent to which a firm's products are similar. Heterogeneous firms choose the number, quality and standardization of their products. Standardizing makes expanding scope less costly, which then increases the...

We present new facts about the largest American companies over the past century. In manufacturing, top firms in the 1910s, 1950s, and 2010s predominantly date back to around 1900. Even as this special generation persists, turnover among top firms has been substantial. In contrast, in retail and...

We present results from an experiment that randomized the expansion of electric grid infrastructure in rural Kenya. Electricity distribution is the canonical example of a natural monopoly. Randomized price offers show that demand for electricity connections falls sharply with price. Experimental...

Should China build mega-cities or a network of linked middle-sized metropolises? Can Europe's mid-sized cities compete with global agglomeration by forging stronger inter-urban links? This paper examines these questions within a model of recombinant growth and endogenous local amenities. Three...

We study optimal merger policy in a dynamic model in which the presence of scale economies implies that firms can reduce costs through either internal investment in building capital or through mergers. The model, which we solve computationally, allows firms to invest or propose mergers according...

We empirically analyze the nature of returns to scale in active mutual fund management. We find strong evidence of decreasing returns at the industry level: As the size of the active mutual fund industry increases, a fund's ability to outperform passive benchmarks declines. At the fund level,...