UNEMPLOYMENT,LABOR MARKET TRANSITIONS,AND RESIDUAL WAGE DISPERSION

It is commonplace in the debate on Germany's labor market problems to argue that low wage dispersion is a major reason for the high unemployment rate. This paper analyzes the relationship between unemployment and residual wage dispersion for individuals with comparable attributes. In the conventional neoclassical point of view, wages are determined by the marginal product of the workers. Accordingly, increases in union minimum wages result in a decline of residual wage dispersion and higher unemployment. A competing view regards wage dispersion as the outcome of search frictions and the associated monopsony power of the firms. Accordingly, an increase in search frictions causes both higher unemployment and higher wage dispersion. The empirical analysis attempts to discriminate between the two hypotheses for West Germany analyzing the relationship between wage dispersion and both the level of unemployment as well as the transition rates between different labor market states. The findings are not completely consistent with either theory. However, as predicted by search theory, one robust result is that unemployment by cells is not negatively correlated with the within‐cell wage dispersion.     

Trend inflation as a workers’ discipline device

The paper shows that a monetary policy regime that allows for a positive inflation rate disciplines monopolistic wages setters if these, when setting contracts, internalize the consequences of their choices for economic outcomes over the life of the contract. We also show that discretionary monetary policy has real effects when wage setters are non atomistic, whereas commitment to a positive inflation rate is effective irrespective of the degree of labor market centralization. Finally, the model may explain the different unemployment dynamics in Europe and in the United States, following the 1980 disinflationary episode. Our approach suggests that disinflation induced an adverse effect on the labor market wedge and that such effect was stronger in Europe, due to the particular importance of large wage setters.     

A consistent model of the expectations augmented Phillips curve and inflation

The usual version of the expectations-augmented Phillips curve is shown to contain several inconsistencies. In particular, it does not take account of the dependence of labor demand and supply on the real wage, nor does it treat the goods and labor markets symmetrically. When the model is revised to meet these points, it is found that standard accelerationist results are largely unaffected. However, the important issue as to whether inflation accelerates depends not on wage but on price behavior. A unit coefficient on the expectations variable in the wage equation is seen to be irrelevant to this question.     

Wage bargaining,trade and growth

We construct a North-South product-cycle model of trade with fully-endogenous growth and union wage bargaining. Economic growth is driven by Northern entrepreneurs who conduct R&D to innovate higher quality products. Northern production technologies can leak to the South upon successful imitation. The North has two sectors: a tradable industrial goods sector (manufacturing) where wages are determined via a bargaining process and a non-tradable sector (services) where wages are flexible. The South has only a tradable industrial goods sector where wages are flexible.We find that unilateral Northern trade liberalization, in the form of lower Northern tariffs on industrial goods, increases the rate of innovation but decreases both the bargained wage in the industrial sector and the flexible wage in the service sector. The wage effects are relative to the Southern wage rate. We also consider a variant of the model with Northern unemployment, driven by a binding minimum wage in the non-tradable service sector. In this case, Northern tariff cuts decrease the innovation rate and the bargained wage rate. In addition, the Northern unemployment rate increases. The model thus highlights the role of labor market institutions in determining the growth and labor market effects of tariff reductions. We also study the effects of unilateral Southern trade liberalization.     

The Effects of Trade Liberalization in a Vertical Structure

Despite the importance of international trade on intermediate goods, the literature did not pay much attention to this aspect in determining the effects of trade liberalization in the presence of a labor union. We take up this issue here and show the effects of trade liberalization on the final goods and/or the intermediate goods, where the domestic firm pays unionized wage and imports intermediate goods. We show that trade liberalization on the intermediate goods (final goods) increases (decreases) the unionized wage, labor union's utility and domestic profit. Trade liberalization on both the final goods and intermediate goods may either increase or decrease the domestic unionized wage, labor union's utility and domestic profit depending on the input coefficients and the initial tariff levels. Our qualitative results are robust with respect to the intermediate goods market structure, the pricing strategy of the intermediate goods producers and the union's objective function.     

Competing wage claims,cost inflation,and capacity utilization

This paper develops a theory of competing wage claims and cost inflation, and attempts to integrate this theory into the core of modern macroeconomic analysis. Specifically, the paper proposes an explanation for wage inertia and wage interdependence based on an application of duopoly theory to labor unions, and incorporates this microeconomic theory of labor union behavior into a macroeconomic general equilibrium model with goods, money, and bonds as well as two kinds of labor. Special emphasis is placed on the interplay between demand and cost factors in the inflation process and on the implications of wage competition among labor unions for the relationship between inflation and unemployment in the short and long run.     

Working capital requirement and the unemployment volatility puzzle

Shimer (2005) argues that a search and matching model of the labor market in which wage is determined by Nash bargaining cannot generate the observed volatility in unemployment and vacancy in response to reasonable labor productivity shocks. This paper examines how incorporating monopolistically competitive firms with a working capital requirement (in which firms borrow funds to pay their wage bills) improves the ability of the search models to match the empirical fluctuations in unemployment and vacancy without resorting to an alternative wage setting mechanism. The monetary authority follows an interest rate rule in the model. A positive labor productivity shock lowers the real marginal cost of production and lowers inflation. In response to the fall in price level, the monetary authority reduces the nominal interest rate. A lower interest rate reduces the cost of financing and partially offsets the increase in labor cost from a higher productivity. A reduced labor cost implies the firms retain a greater portion of the gain from a productivity shock, which gives them a greater incentive to create vacancies. Simulations show that a working capital requirement does indeed improve the ability of the search models to generate fluctuations in key labor market variables to better match the U.S. data.     

Wage indexation and the monetary policy regime

We estimate a New Keynesian wage Phillips curve for a panel of 24 OECD countries and allow the degree of wage indexation to past inflation to vary according to structural characteristics. We find that the degree of wage indexation is significantly lower for countries with an inflation target. However, this effect vanishes when we control for the degree of goods market competition. By contrast, more goods market competition is consistently associated with lower wage indexation. This robust finding puts into question whether embedding a constant degree of wage indexation in standard DSGE models is truly structural.     

International capital and nontraded goods in the long run

The present paper develops the comparative static properties of a small open economy which produces both traded goods and nontraded goods, and is a price taker in the international market for productive capital. Assumptions of full employment, competitive markets, and international mobility of productive cap ital input capture a long run horizon. Comparative static results associated with the wage, labor, and the price of the nontraded good are independent of factor intensity, factor substitution, and demand for the nontraded good. A tax on the traded good and a capital subsidy together raise national income and the real wage.     

Inflation in Argentina during the 2000s

The paper presents a neo-structuralist econometric analysis of the monthly inflation rates. The model breaks down the CPI into different components based on their price-formation mechanisms. The basic breakdown defines three components: PFLEX (fruits and vegetables, 3.6% of the basket), PREGUL (prices regulated by the government, 20.1% of the basket) and PFIX (the rest of goods and services, 76.3% of the basket). PFIX is the focus of the econometric analysis while PFLEX and PREGUL are considered exogenous. The explanatory variables are the monthly rates of: the price of bovine cattle at the domestic market, the international soy price, the price by ton of imported intermediate goods, the nominal exchange rate, the average wage of workers that are registered in Social Security and the productivity, measured by the GDP by employed worker. There was an informal indexation mechanism in the labor market. Average monthly wages rose at annual rates that were almost always higher than the sum of past annual inflation plus the annual increase in productivity. The over-indexation of the unit labor cost was the main inflationary factor in the period. The inertial component, represented in the model by the previous monthly rate, determines 60% of the current rate.     

PRICE DISPERSION,INFLATION, AND WELFARE*

We examine the implications of inflation for both price dispersion and welfare in a monetary search economy. In our economy, if the degree of buyers' incomplete information about prices is fixed, both price dispersion and real prices are increasing in inflation. As the inflation rate approaches the Friedman rule, both price dispersion and welfare losses vanish. If households choose the number of prices to observe, then the optimal inflation rate may exceed the Friedman rule as inflation induces search and, up to a point, raises welfare by eroding market power.     

The labor wedge: MRS vs. MPN

Do fluctuations of the labor wedge, defined as the gap between the firm's marginal product of labor (MPN) and the household's marginal rate of substitution (MRS), reflect fluctuations of the gap between the MPN and the real wage or fluctuations of the gap between the real wage and the MRS? For many countries and most forcefully for the United States, fluctuations of the labor wedge predominantly reflect fluctuations of the gap between the real wage and the MRS. As a result, business cycle theories of the labor wedge should primarily focus on improving the household side of the labor market. Explanations of the labor wedge based on departures of the representative firm's MPN from the real wage are rejected by the data because the labor share of income is not strongly procyclical.     

A pre-estimation sample separation method for a labor market in disepuilibrium

The paper presents a method for separating the sample on wage rate and labor input for a labor market in disequilibrium prior to the estimation stage. It is shown how the method's economic rationale stems from the existence of Keynesian unemployment, which implies a combination of real wage and labor input off the notional labor demand and supply curves. The potential usefulness of the method for generating unbiased estimates of wage elasticities of labor demand and labor supply is demonstrated on annual U.S. data.     

The role of labor markets for euro area monetary policy

In this paper, we explore the role of labor markets for monetary policy in the euro area in a New Keynesian model in which labor markets are characterized by search and matching frictions. We first investigate to which extent a more flexible labor market would alter the business cycle behavior and the transmission of monetary policy. We find that while a lower degree of wage rigidity makes monetary policy more effective, i.e. a monetary policy shock transmits faster onto inflation, the importance of other labor market rigidities for the transmission of shocks is rather limited. Second, having estimated the model by Bayesian techniques we analyze to which extent labor market shocks, such as disturbances in the vacancy posting process, shocks to the separation rate and variations in bargaining power are important determinants of business cycle fluctuations. Our results point primarily towards disturbances in the bargaining process as a significant contributor to inflation and output fluctuations. In sum, the paper supports current central bank practice which appears to put considerable effort into monitoring euro area wage dynamics and which appears to treat some of the other labor market information as less important for monetary policy.     

A dynamic macroeconomic model with monopolistic behavior in the labor market

Is the monopolistic behavior of a wage setting labor union compatible, in the long and in the short run, with price stability and full employment? What is the effect, if any, of economic policies? The answers are strongly affected by the prevailing technology and by the union's objective function. With limited short run production possibilities, a short run trade-off may exist between full employment and maximum expected real wage revenues. In the long run, however, when expectations are fully adjusted, this trade-off disappears. Therefore, a labor union consistently pursuing maximum short run expected real wage revenues may not maximize long run effective real wage revenues. Price stability is granted in the long run, provided inflation is not induced by public policy. The only instrument a pure consuming government has to fight long unemployment is to reduce its share of aggregate demand.     

The effects of indexation of wage contracts on macro-economic stability

The paper develops a simple analytical framework in which the shortrun affects of wage indexation on the dynamic stability of inflation can be analyzed. It consists of a unlonized labor market faced by a competitive demand. Without indexation, the wage contract is based upon the union's prediction of the price level during the period of the contract. With indexation, the same objective is achieved by contracting only once at some initial period, subject to the stipulation that the nominal wage is linked to the price level. The main result is that when the demand for money is sensitive to changes in the expected rate of inflation, nominal variables like prices and wages are more likely to yield an unstable dynamic response with wage indexation, thus endangering the monetary system.     

Involuntary unemployment,macroeconomic policy,and a behavioral model of the firm: Why high real wages need not cause high unemployment

The perspective of modern macroeconomic theory, be it new classical or old and new Keynesian, is that unemployment can be reduced only if real wages are cut. The modern Keynesians, basing themselves upon the microfoundations of efficiency wage theory, argue that real wages cannot and will not be cut by firms for efficiency wage reasons. This generates involuntary unemployment based on a market coordination problem. A behavioral model that contrasts with efficiency wage theory is presented here which suggests that reducing real wages need not affect the marginal cost of labor and, therefore, the number of individuals employed. In the behavioral model, wherein there exists some linearity in the relationship between real wages and working conditions and labor productivity, a lower real wage rate is not a necessary condition for reducing the unemployment rate nor is a higher real wage an obstacle to reducing it. In this scenario, unemployment, to the extent that it is demand-side induced, is not related to movements in real wages. Therefore, restoring full employment after a negative demand shock becomes a matter for demand management, not demand management that must be coordinated with measures designed to reduce real wages.     

Bidding for Labor

We present a competing-auction theory of the labor market, where job candidates auction their labor services to employers. An equilibrium matching function emerges which has many of the features commonly assumed, including constant returns to scale in large economies. The auction mechanism also generates equilibrium wage dispersion among homogeneous workers and constrained-efficient entry of vacancies in large economies. In a dynamic version of the model, we generate implied numerical values for equilibrium unemployment and wage dispersion. The theory makes the novel prediction that wage dispersion is a decreasing function of the discount factor and labor market tightness. Journal of Economic Literature Classification Numbers: E24, J31, J41, J64, D44.     

Short-term policy in open semi-industrialized economies: The narrow limits of the possible

This paper develops a model to analyze short-term policy alternatives in semi-industrialized countries. The major points raised are the following: (i) There are two sectors, producing traded and non-traded goods. The latter is characterized by a fairly low elasticity of substitution and a high relative labor share. If the elasticity of substitution in the traded goods sector has an econometrically reasonable value, then short-run improvements in both the labor share and real income may well call for revaluation of the exchange rate and an increase in home good's price (prices of both goods being measured in wage units). (ii) If excess supply functions have Walrasian stability, such price changes will lead to deterioration in the balance of payments: On the other hand, devaluation-induced improvement in the balance of payments (with constant government expenditure) can lead to an improvement in real income, but reduces the labor share. (iii) If the economy is formally unstable, due to capitalists and laborers concentrating their expenditure demands respectively on the goods intensive in factor payments to themselves, then balance of payments improvement in a comparative static analysis may entail reductions in both real income and the labor share. (iv) If the additional realistic assumption is made that elasticities of excess supply functions for the two goods with respect to the interest rate are quite low, then in general improvement of all three targets (real income, balance of payments, and income distribution) will be unattainable. If in addition the government cannot finance expenditure changes by anything but money supply changes, then in general only one target variable can be attained. (v) Numerical sensitivity analysis based on Chilean data indicates that these (and other) rather pessimistic results hold for fairly wide ranges of ‘plausible’ parameter values, as long as the model's short-run Keynesian assumptions are maintained.     

Wage forming mechanism in the market transitional process of China (1993–2005): Evidence from the provincial panel data

Using the panel data of 31 provinces during 1993–2005, this paper examines the factors that influence wage changes in China. During the process of the marketization, the linkage between wage and some factors such as inflation, productivity and unemployment rate has been strengthened. But there still exists large room for further development of labor market, as the relationship between the wage and productivity is not sufficiently strong, and the wage’s response to the unemployment is lagged. The wage forming mechanism in different regions also varies. The econometric results show that, contrary to some public perceptions, the eastern areas’ wage marketization is not satisfactory.