In Lentz and Mortensen (2005), we formulate and estimate a market equilibrium model of endogenous growth through product innovation in the spirit of Klette and Kortum (2004). In this paper, we provide a quantitative solution to the social planner’s problem in the modeled environment. We find that the optimal growth rate is over three times larger than its value in market equilibrium and that th...

In a large sample of entrepreneurs, 2D:4D (second-to-fourth digit) ratio and managerial performance are studied. Entrepreneurs with lower ratio manage larger firms, manage larger firms when acquire control and experience faster average growth. Firms run by high prenatal testosterone entrepreneurs have lower profitability as measured by return on assets and return on sales. Prenatal testosterone...

This empirical research note documents the relationship between composition of a firm's workforce (with a special focus on age and gender) and its performance with respect to innovative activities (outlays and employment in research and development (R&D)) for a large representative sample of enterprises from manufacturing industries in Germany using unique newly available data. We find that fir...

Lupine seeds are a valuable nutritive source for animal feeding, but poultry nutrition, the content in crude fiber and non-starch polysaccharides (NSP) have an antinutritional factor. The aim of this research was to highlight effect partial soybean meal replacement with L. albus enzyme addition laying quail diets on productive performance, digestion, blood biochemical indices egg quality. A tot...

Expanding credit access in developing contexts could help some households while harming others. Microcredit studies show different effects at quantiles of household profit, including negative effects; yet these findings also differ across studies. I develop new Bayesian hierarchical models to aggregate the evidence on distributional for mixture-type outcomes such as profit. Applying them microc...

BACKGROUND 5S ribosomal RNA is the smallest rRNA. Its Watson-Crick helices were identified more than 20 years ago, but the conformations of its loops have long defied analysis. One of the three arms of 5S rRNA, residues 69-106 in Escherichia coli, contains a 14-residue internal loop called loop E. The sequence of loop E is conserved within kingdoms, and is terminated by a pyrimidine-rich loop c...