Optimal Monetary Policy with Labor Market Frictions: The Role of the Wage Channel

This paper introduces right‐to‐manage bargaining into a labor search model with sticky prices instead of standard efficient bargaining and examines the Ramsey‐optimal monetary policy. Without real wage rigidity, even when the steady state is inefficient, price stability is nearly optimal in response to technology or government shocks. Right‐to‐manage bargaining creates the wage channel to inflation, because there is a direct relationship between real wages and real marginal cost. In the presence of the wage channel, price markups consist of only real marginal cost, and real wages and hours per worker are determined such as in the Walrasian labor market.     

A note on internal and external reference in efficiency wage models

According to Bewley, a workers’ morale depends on being treated fairly within firms. This implies that the internal comparison of the own wage with wages paid to other workers within the firm affects individual effort determination. By contrast, the standard efficiency wage models only consider a comparison of the own wage with external income opportunities as the only determinant for individual effort. We provide a simple efficiency wage framework in which both the internal and external perspectives can affect individual effort determination. Our framework suggests that the internal reference is essential for the existence of real wage rigidity while the external reference ensures an upward-sloping wage-setting curve.      

The Size and Frequency of Price Changes: Evidence from Grocery Stores

We analyze a data set (on grocerystore prices for lettuce) with many advantages overthose used previously to explain firm heterogeneity inthe size and frequency of price changes. Despitecommon shocks to their input price, grocers' pricechanges vary widely in size and frequency. We testhypotheses emerging from a theoretical framework. Wefind that product, firm, and market characteristicsassociated with the benefits from and costs ofchanging price explain grocer-to-grocer variation inthe size and frequency of price changes. Moreconcentrated markets, larger firm size, and thinnerproduct markets lead to infrequent and large pricechanges.     

核心能力刚性与企业可持续成长

越来越多的研究表明,企业的外部社会关系对内部创新活动产生巨大的影响,但对其影响机制的研究却非常缺乏。基于战略决策理论,本文以江苏省420家高科技企业为被试对象,对企业外部关系对内部创新活动的影响机制进行实证研究。结果表明,企业外部关系(产业外关系和产业内关系)通过影响战略决策过程(信息多样性、决策质量和战略创造性)对内部创新活动产生重要影响。     

Downward Wage Rigidity in Europe: A New Flexible Parametric Approach and Empirical Results

Abstract. We suggest a new parametric approach to estimate the extent of downward nominal wage rigidity in ten European countries between 1995 and 2001. The database used throughout is the User Data Base of the European Community Household Panel (ECHP). The proposed approach is based on the generalized hyperbolic distribution, which allows to model wage change distributions characterized by thick tales, skewness and leptokurtosis. Significant downward nominal wage rigidity is found in all countries under analysis, but the extent varies considerably across countries. Yearly estimates reveal increasing rigidity in Italy, Greece and Portugal, while rigidity is declining in Denmark and Belgium. The results imply that the costs of price stability differ substantially across Europe.     

When does the cost channel pose a challenge to inflation targeting central banks?

In a sticky-price model where firms finance their production inputs, there is both a lower and an upper bound on the central bank's inflation response necessary to rule out the possibility of self-fulfilling inflation expectations. This paper shows that real wage rigidities decrease this upper bound, but coefficients in the range of those on the Taylor rule place the economy well within the determinacy region. However, when there is time-variation in the share of firms who finance their inputs (i.e. Markov-switching) then inflation targeting interest rate rules frequently result in indeterminacy, even if the central bank also targets output. Adding a nominal growth target to the policy rule can often alleviate this indeterminacy and therefore anchor inflation expectations.     

Dynamic adjustment and long-run equilibria: Panel data estimates for the East German states

The economic development in East Germany after unification shows both, success and failure. In the early nineties wages and productivity increased fast; later on catching up faded out. A central question from a policy viewpoint is whether this fading out indicates a reduction of the adjustment speed or an equilibrium gap. This points towards a stationarity analysis of differences between East and West Germany. Our paper presents panel data estimates for the East German states for wages, productivity, competitiveness and unemployment. The results reveal that the adjustment was fast, but the equilibrium gaps are large.     

Patterns and Determinants of Price Changes: Analysing Individual Consumer Prices in Austria

Abstract. We provide empirical evidence on the degree and characteristics of price stickiness in Austria by estimating the average frequency of price changes and the duration of price spells from a large dataset of individual price records collected for the computation of the Austrian consumer price index. The mean (median) duration of price spells in Austria amounts to 14 (11) months, but there is considerable heterogeneity across sectors and products. We find that price increases occur only slightly more often than price decreases. For both directions, the average magnitude of price changes is quite large (11% and 14%, respectively). The introduction of the euro cash in January 2002 led to more frequent but, on average, smaller price adjustments than usual. Estimating the probability of a price change in a panel probit model, we find a small but positive effect of the price spell duration on the incidence of price changes. Furthermore, product‐specific inflation, the size and the sign of the last price change and the period of the euro introduction significantly affect the probability of a price change.     

Pre-recession wage inflation and the strength of the subsequent recovery

This study shows that the rate of wage inflation in the year before a recession is positively related to the rate of employment growth in the subsequent recovery. A possible explanation for this relationship is downward nominal wage rigidity. It is also found that the prior rate of wage inflation is not significantly related to the employment decline during the ensuing recession, suggesting that prior wage inflation has a greater impact on the strength of the recovery from a recession than on the severity of the recession.     

A comparison of nominal and indexed debt under fiscal constraints

This paper makes a welfare comparison between the issuance of price-indexed and nominal public debt in the presence of fiscal constraints, viz. a debt constraint, a deficit constraint and a combination of both. Distortionary taxes or public consumption are regulated to avoid the violation of the relevant fiscal constraint(s). Under a debt constraint indexed debt is generally preferred, while under a deficit constraint the results are more mixed. Introducing inflation persistence and raising the maturity of the debt tend to increase the magnitude of the welfare differences between the two types of debt. Welfare differences are further affected by the degree to which public consumption and tax revenues are indexed to actual versus structural nominal GDP.