Mark Bils

Cyclical factor utilization

We introduce procyclical labor and capital utilization, as well as costs of rapidly increasing employment, into a business-cycle model. Plausible variations in factor utilization enable us to explain observed variability of real GNP with considerably smaller economy-wide disturbances. The costs of adjustment create very interesting and realistic lead and lag relationships: Employment does not peak until a full quarter after output; workweeks, effort, capital utilization, and productivity all sharply lead the business cycle.

Pricing in a Customer Market

In standard pricing models, movements in demand are partially offset by price responses. In a customer market, however, price markups may decrease with high demand. Thus, price may magnify, rather than stabilize, demand movements. I consider a monopolist selling a good of which first-time consumers are uncertain. Repeat customers know that the product works. The monopolist trades the objectives of exploiting past customers and attracting new ones. In a period with many new potential customers, the monopolist gives more weight to attracting and lowers its markup. Last, I examine some evidence on whether expansions are periods with disproportionately many new customers.

Using Consumer Theory to Test Competing Business Cycle Models

Consumer theory suggests that expenditures on luxuries and durables should be more cyclical than expenditures on necessities and nondurables. Estimating luxuriouseness and durability for 57 consumer goods, we confirm this prediction in U.S. data. We exploit this finding to test predictions of cyclical utilization and increasing returns models of business cycles. Both models predict more cyclical productivity for durable luxuries, a prediction borne out in the data. The utilization model predicts procyclical relative prices for durables and luxuries; the increasing returns model does not. Prices are more procyclical for durables and luxuries, discriminating in favor of cyclical utilization.

Interindustry Mobility and the Cyclical Upgrading of Labor

We investigate whether a market‐clearing model is consistent with industry employment and wage patterns related to the cyclical upgrading of labor. We demonstrate that Roys (1951) market‐clearing model of self‐selection would account for cyclical upgrading if industries were characterized by positive selection. Wage comparisons of industry movers and stayers in panel data do reveal widespread positive selection. Also consistent with the Roy model, composition‐corrected industry wages are more cyclical in high‐wage cyclical industries. The Roy model does fail to explain predictable patterns in the wage changes of industry movers, so we consider several market‐clearing and queuing extensions.

Understanding How Price Responds to Costs and Production

The importance of sticky prices in business cycle fluctuations has been debated for many years. But we argue, based on a large empirical literature from the 1950s and 60s, that it is necessary to distinguish the response of price to an increase in factor prices from its response to an increase in marginal cost generated by an expansion in production. Consistent with that earlier literature, we find for 450 U.S. manufacturing industries that prices do respond more to increases in costs driven by changes in factor prices than to increases in marginal cost precipitated by expansions in output. We explore two models that can potentially explain these findings. Both break the link between price and marginal cost, thereby generating what one might naively interpret as average-cost pricing. The first is driven by firms pricing to limit entry. The second is driven by firms pricing to limit non-price competition within their market.

Testing for Keynesian Labor Demand

According to the textbook Keynesian model, short-run demand for labor is sensitive to the demand for goods. In this view, sellers deviate from setting the marginal product of labor proportional to the real wage, instead enduring or choosing lower price markups when demand for goods is high. We test this prediction across U.S. industries in the two decades up through the Great Recession. To identify movements in goods demand, we exploit how durability varies across 70 categories of consumption and investment. We also take into account the flexibility of prices and capital-intensity of production across goods. We find evidence in support of Keynesian Labor Demand.

Tariff Protection and Production in the Early U.S. Cotton Textile Industry

The importance of tariff protection in the U.S. cotton textile industry is examined quantitatively for the period around 1833. In sharp contradiction to past writings it is found that the industry was almost entirely dependent on protection.

Testing for Contracting Effects on Employment

I test the importance of wage rigidities from long-term contracts by observing how employment behaves when firms and workers recontract. If rigidities are important then we should observe employment adjusting after recontracting to undo movements in employment during the past contract that were excessive due to rigid wages. The data are for twelve manufacturing industries that display a strong bargaining pattern. I find that contract rigidities are important, causing considerably larger fluctuations in employment than would occur with flexible wages. By far the most striking case is in motor vehicles where long-term contracts much more than double the size of fluctuations in employment. I also examine the behavior of wage rates when new contracts are introduced. Wage growth does respond to employment growth during the prior contract in several of the industries; but these responses are not related to the pattern of employment responses across industries.

How Sticky Wages In Existing Jobs Can Aect Hiring

We consider a matching model of employment with wages that are flexible for new hires, but sticky within matches. We depart from standard treatments of sticky wages by allowing effort to respond to the wage being too high or low. Shimer (2004) and others have illustrated that employment in the Mortensen-Pissarides model does not depend on the degree of wage flexibility in existing matches. But this is not true in our model. If wages of matched workers are stuck too high in a recession, then firms will require more effort, lowering the value of additional labor and reducing new hiring.

Welfare costs of sticky wages when effort can respond

We examine the impact of wage stickiness when employment has an effort as well as hours dimension. Despite wages being predetermined, the labor market clears through the effort margin. Consequently, welfare costs of wage stickiness are potentially much, much smaller.