College of Behavioral & Social Sciences
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Item The Determinants of U.S. Labor Disputes(University of Chicago Press, 1994) Cramton, Peter; Tracy, Joseph S.We present a bargaining model of union contract negotiations, in which the union decides between two threats: the union can strike or continue to work under the expired contract. The model makes predictions about the level of dispute activity and the form the disputes take. Strike incidence increases as the strike threat becomes more attractive, because of low unemployment or a real wage drop during the prior contract. We test these predictions by estimating logistic models of dispute incidence and dispute composition for U.S. labor contract negotiations from 1970 to 1989. We find empirical support for the model's key predictions, but these associations are weaker after 1981.Item Wage Bargaining with Time-Varying Threats(University of Chicago Press, 1994) Cramton, Peter; Tracy, Joseph S.We study wage bargaining in which the union is uncertain about the firm's willingness to pay and threat payoffs vary over time. Strike payoffs change over time as replacement workers are hired, as strikers find temporary jobs, and as inventories or strike funds run out. We find that bargaining outcomes are substantially altered if threat payoffs vary. If dispute costs increase in the long-run, then dispute durations are longer, settlement rates are lower, and wages decline more slowly during the short-run (and may even increase). The settlement wage is largely determined from the long-run threat, rather than the short-run threat.Item The Use of Replacement Workers in Union Contract Negotiations: The U.S. Experience, 1980-1989(University of Chicago Press, 1998) Cramton, Peter; Tracy, Joseph S.It is argued in many circles that a structural change occurred in U.S. collective bargaining in the 1980s. Strike incidence declined, dispute incidence increased, and the composition of disputes shifted away from strikes and toward holdouts. We investigate the extent to which the hiring of replacement workers can account for these changes. For a sample of over 300 major strikes since 1980, we estimate the likelihood of replacements being hired. We find that the risk of replacement is lower for bargaining units with more experienced workers, and declines during tight labor markets. The composition of disputes shifts away from strikes as the predicted risk of replacement increases. In addition, the overall level of disputes increases as a result of the shift in the composition of disputes. Based on our estimates reducing the predicted replacement risk faced by bargaining units to the pre-1982 levels would have lead to a reduction in the dispute incidence by around 5 percentage points, an increase in the fraction of disputes involving a strike by around 4 percentage points, and an increase in the strike incidence by around 0.8 percentage points.