This paper uses confidential microdata from the Census of Services to examine lawfirms' field boundaries. We find that the share of lawyers working in field-specializedfirms increases as market size increases and lawyers field-specialize, indicating thattransaction costs among lawyers, and not...

This paper examines hierarchies’ role in the organization of human-capital-intensive productionWe develop an equilibrium model of hierarchical organization, then provide empirical evidenceusing confidential data on thousands of law offices from the 1992 Census of Services. We showhow the...

Garicano and Rossi-Hansberg (2003) show that knowledge-based hierarchies arecharacterized by positive sorting between workers and managers when knowledgeacquisition takes place before production. We extend the analysis and find thatcomplementarities between manager and worker skill are even...

A large theoretical literature focuses on the question: What determines firms’ boundaries?Recently, Garicano and Santos and Holmstrom and Milgrom have proposed theories in whichfirms’ boundaries reflect the division of labor across individuals. This paper discussesstrategies for generating...