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...

Earnings inequality has increased substantially since the 1970s. Using evidence changes from con…dential Census data on U.S. law offices on lawyers'organization and earnings, we study the extent to which the mechanism suggested by Lucas (1978) and Rosen (1982), a scale of operations effect...