Knowledge that Transforms

This paper estimates the effect of union work rules in the building trades on employment and costs by comparing factor demand elasticities for union and nonunion contractors and subcontractors over micro data from two different types of construction. The results show that the elasticities of substitution between labor and nonlabor inputs and own-price elasticities for nonlabor inputs are about the same for union and nonunion contractors. In contrast, the elasticities of substitution among different skill categories of labor and the own-price elasticities for each category are much lower under unionism.

In recent years a large literature has developed that investigates the role of insurance in labor market contracting. Papers in this literature typically assume that workers are completely restricted from borrowing. We argue, and to some extent demonstrate, that in many environments capital market imperfections do not lead to a noborrowing result but rather to a capital market assumption that is intermediate between the no-borrowing assumption and the perfect capital market assumption. We then consider some of the ramifications that this intermediate capital market assumption has on the type of insurance the firms provide through the labor market contract.

Existing models of incentive compatibility in life-cycle employment contracts arrive at different predictions partly because of the different kinds of "contract-breaking" behavior allowed in them. This paper sets out and classifies the full range of such behaviors, argues that no model has yet incorporated all of them, and examines the consequences of doing so in the context of Lazear's well-known model. In the extended model, wages cannot rise faster than marginal products throughout the entire contract, and the set of feasible contracts can often be empty, even when both parties can commit to terminate the contract whenever it is broken by the other party.

This paper describes changes in hours of work and income between 1959 and 1979 of women and men ages 25-64. It includes attempts to measure and value nonmarket production and leisure as well as market work, to take account of possible income sharing within households, and to allow for economies of scale in household production. The most important empirical result is that, relative to men, women's access to goods and services and leisure was lower in 1979 than in 1959. Changes in hourly earnings, hours of work, and household structure contributed to this result. The sex differential in hourly earnings is explored in detail.

The traditional model of collective bargaining confines unions to settlements constrained by the employer's labor demand curve, but an alternative model places wage-employment outcomes on a contract curve that extends beyond the labor demand curve. This paper derives a multidimensional (hedonic) contract-curve model in which employment-security provisions are used to maintain efficient bargains outside the employer's demand curve and distinguishes empirically between the contract-curve and demand-constraint models using data for public school teachers in New York State. Estimates clearly support the contract-curve model over the demand-constraint model by linking the gap between compensation and the value of the marginal product to the strength of employment-security provisions.

The objective of this paper is to demonstrate that the nonunion wage differential consists of two effects. The first represents the differential between the wage of a nonunion worker in a collective bargaining unit and the wage paid to a comparable worker not covered by a bargaining agreement. This effect arises from the monopoly power of organized labor. The second is the wage differential between union and nonunion workers in collective bargaining units. This latter effect is attributed to economic benefits that unionism brings to its members. Empirical evidence is presented in support of both effects.

The 1970 and 1979 Current Population Surveys are used to compute the personal distribution of income. The major innovation in this paper is that all individuals in the household are not treated identically. In particular, children receive a different proportion of income than do adults. That proportion is estimated. Its variations with respect to household characteristics are discussed, and a final distribution of personal income is computed. That distribution has considerably fatter tails than does the one normally used.

This paper examines the provision of industrial safety in a competitive labor market under the assumption that it takes time for workers to learn about changes in safety levels at a firm. It is shown that safety will in general be underprovided and that in some cases government-enforced workmen's compensation can bring improvements. The results hold even though in equilibrium all workers are perfectly informed about the level of safety prevailing at each firm and each is free to move to any firm he likes.