The theory proposed below is that entrepreneurs are jacks-of-all-trades who may not excel in any one skill, but are competent in many. A coherent model of the choice to become an entrepreneur is presented. The primary implication is that individuals with balanced skills should be more likely...

Excessive layoffs in bad times and excessive quits in good times both stem from the same weakness in practical employment arrangements: the specific nature of worker-firm relations creates a situation of bilateral monopoly. Institutions which have arisen to avert the associated inefficiency...

This paper argues that pensions are used as severance pay devices in an efficient compensation scheme. The major points of the study are: (1) Severance pay, which takes the form of higher pension values for early retirement, is widespread. (2) A major reason for the existence of pensions is the...

The returns to talent or performance have grown over time in developed countries. Is talent concentrated in a few firms or are firms virtual microcosms of the economy, each having close to identical distributions of talent?

It has long been recognized in finance and other literature that variance provides option value. The same point carries over to the labor market. Firms like variance in new employees because they can keep the good workers and terminate the bad ones. But market wages must adjust to make the...

Hiring is positively correlated with separation, both across firms and over time. A theory of hiring and separation based on shifts in demand implies the opposite. One firm or industry hires and grows when another fires and contracts. But hiring for expansion and layoff for contraction comprises...

Churn, defined as replacing departing workers with new ones as workers move to more productive uses, is an important feature of labor dynamics. The majority of hiring and separation reflects churn rather than hiring for expansion or separation for contraction. Using the JOLTS data, we show that...

Internal labor markets are those where workers are hired into entry level jobs and higher levels are filled from within. Wages are determined internally and may be quite free of market pressure. External labor markets imply that workers move somewhat fluidly between firms and wages are...