Competitive price adjustment

A study is made of a competitive trading process in which a price-maker calls prices periodically under the obligation of trading for his own account to satisfy excess demand. Characteristics of the price-maker's optimal behavior are derived. The price-maker system is evaluated with respect to an alternative market clearing system.     

Determinants of price adjustment

This paper reports results of an empirical study investigating the adjustment speed of prices to change in costs and demand. Particular emphasis is laid on the impact of concentration on the adjustment speed. In addition, the effects of the business cycle and capital intensity are considered. It shows that concentrated industries tend to adjust prices faster, while capital intensity has a negative impact. Prices are more flexible during an upswing than in times of a recession.     

Scale economies with regard to price adjustment costs and the speed of price adjustment in Australian manufacturing

This paper aims to examine the impact of firm size, industry concentration and the length of production on industry speed of price adjustment. To motivate the paper, an industry pricing model in error correction form is derived from firm pricing behaviour. As a new development, firms are assumed to have price adjustment costs that are a function of their size. The empirical model is estimated using two‐digit Australian manufacturing industry data for the period 1994:3 to 2006:1. The results suggest that the industry speed of price adjustment is positively related to firm size and negatively related to industry concentration and the production lag. Implied values for industry speeds of price adjustment are generally small when compared to other country industry studies. However, the industry average median lag of 7.1 quarters indicates a slightly faster speed of price adjustment than the estimate for the Australian consumer price index by Dwyer and Leong (2001 Dwyer, J. and Leong, K. 2001. Changes in the determination of inflation in Australia 1–44. Reserve Bank of Australia Research Discussion Paper 2001‐02 [Google Scholar]).     

A convergent price adjustment process

In this paper we describe a price adjustment mechanism which leads to an economic equilibrium, starting from an arbitrarily chosen initial price vector. The process is global and universal.     

On the design of regulatory price adjustment mechanisms

Price adjustment mechanisms are employed in the electric utility industry to pass changes in fuel costs on to consumers without formal rate review by a regulatory commission. The predictability of this pass-through and the regulator's limited ability to observe the actions of a firm can create potential incentive problems associated with the choices of technology and fuel supply. This paper is concerned with the regulatory design of pass-through formulas when a factor price is uncertain. The optimal design involves deviating from the full-information optimal price formulas in order to mitigate the incentive problems.     

Wealth and the dynamics of macroeconomic adjustment

This paper examines the role of wealth in the context of a small model constructed from equations whose theoretical properties resemble those typically assumed in the literature, but which allow for lagged adjustment. Among the most salient results of the investigation is the discovery of a perverse relationship between monetary tightening and nominal wealth in the initial stages of counterinflationary policy. This in turn has implications for policies which recommend the naive targeting of wide monetary aggregates. The model is also used to illustrate the consequences of assuming less than perfect capital mobility for the relationship between the current account and the exchange rate.     

Out-of-equilibrium price dynamics

A trading-post organization of exchange is shown to determine an out-of-equilibrium price dynamics. The unique equilibrium of quasi-linear economies (defined by log-linear utility functions) is stable for the discrete time version of the dynamics. Equilibria that are stable for the continuous time version include those that satisfy the gross-substitutability property, the no-trade equilibria and, more generally, those for which trade intensity is relatively small. In addition, the set of stable equilibria is path-connected when endowments are allowed to vary without sign restrictions.      

Reconsideration of the P-bar model of gradual price adjustment

This paper compares the P-bar model of price adjustment with the currently dominant Calvo specification. Theoretically, the P-bar model is more attractive as it depends on adjustment costs for physical quantities rather than nominal prices, while incorporating a one-period information lag. Furthermore, the resulting adjustment relation is more completely free of “money illusion,” in terms of dynamic relationships, and therefore satisfies the natural-rate hypothesis of Lucas [1972a. Econometric testing of the natural rate hypothesis. In: Eckstein, O. (Ed.), The Econometrics of Price Determination. Board of Governors of the Federal Reserve System], which is not satisfied by the Calvo model in any of its variants. Along the way, it shows that both the P-bar and Calvo models can be formulated in distinct versions in which current real wages are, or are not, allocative. Quantitatively, for a given calibration of the demand parameters, the implied time-series properties of the inflation rate, output gap, and nominal interest rate are determined for various policy parameters, and are compared with quarterly data for the US economy. Neither model dominates but, overall, the comparison seems somewhat more favorable to the P-bar model and certainly does not provide support for the dominant position held by the Calvo model in current monetary policy analysis.     

Some quasi-globally stable processes of price adjustment

In this paper, the existence of some quasi-globally stable processes of price adjustment in a perfectly competitive market, is proved. These processes are relative to a special class of “excess demand” vector fields satisfying regularity hypotheses and boundary conditions of classical type. Modifications of the above processes which, under different hypotheses, are still quasi-globally stable, are studied.     

Production and price smoothing by inventory adjustment?

The present paper examines the role of inventories for the short run adjustment behavior of firms. A theoretical model of a monopolistic firm carrying inventories that includes costs of adjusting output is examined. The model is tested empirically by using business survey data collected by the IFO-Institute, Munich. It is shown, that if data on individual firms are used and econometric estimation techniques are applied that properly take this into account, the estimates derived are fully compatible with the appealing idea of production smoothing by inventories.     

Uncertainty and the comparative dynamics of stock price

This article derives an envelope theorem for dynamic economic problems under conditions of uncertainty. The theorem is motivated through analysis of a firm with an objective of maximizing shareholders' wealth. Envelope results are used to determine how the value of the optimizing firm is expected to change in response to shifts in several variables including the risk-free interest rate, the market risk premium, the tax rate, and the prices of output and inputs. Uncertainty is introduced into the model using a general measure-theoretic approach which does not require restrictive assumptions regarding the behavior of the problem's stochastic variables.     

Endogenous fixprices and sticky price adjustment of risk-averse firms

A risk-averse price-setting firm which knows the quantity demanded at the status quo price but has imperfect information otherwise may choose not to change it although an otherwise identical risk-neutral firm would do so, provided the variance of the firm's subjective probability distribution over quantities demanded as a function of price displays a kink at the status quo. This is equivalent to risk aversion of order one. When no such endogenous fixprice exists, the size of price adjustment still tends to zero as risk aversion tends to infinity, and to any arbitrarily small menu cost there exists a degree of risk aversion so that the firm will not adjust.     

Disequilibrium and asymmetric price adjustment the case of the Swedish timber market

The major question raised in this paper is whether or not the Swedish timber market is in a state of disequilibrium. In recent discussions it has been claimed that the industry has been constrained in production because of timber shortage. In this paper I abandon the assumption of equality between demand and supply. The econometric model is based on a partial price adjustment model which allows for asymmetric adjustment. The test of equilibrium versus disequilibrium supports disequilibrium.This study was supported financially by grants from the research program private forestry at the Swedish Institute of Agricultural Engineering. I would like to thank Karl-Gustaf Löfgren for his insightful comments on earlier drafts. In addition, I would like to thank three anonymous referees for many useful suggestions.     

Asymmetric price adjustment in a menu-cost model

In this paper we demonstrate that the menu-cost model implies that prices adjust asymmetrically to nominal-demand shocks and that the asymmetry is linked to the elasticity of demand as well as menu costs. These implications are tested using manufacturing and retailing panel data for the OECD countries. The empirical results give some support for the menu-cost model.     

Asymmetric adjustment costs and the dynamics of housing supply

This paper examines aggregate dynamics on the supply side of the housing market. The representative firm's intertemporal profit maximisation problem is considered under asymmetric adjustment costs. The hypothesis of asymmetric adjustment costs is also examined empirically using Irish data. Several interesting insights into the dynamics of housing supply are uncovered. These include support for the proposition that the adjustment costs of expanding housing output are greater than those associated with a contraction, evidence of threshold points beyond which adjustment starts to speed up and also the existence of a continuum of equilibria between these thresholds where no adjustment occurs at all.     

Producer price adjustment to commodity price shocks: An application of threshold cointegration

During the 1980s and 1990s, most developing countries in Sub-Saharan Africa and Latin America implemented structural adjustment reforms, which included the liberalization of export crop markets and the abolition of marketing boards. The emergence of new marketing systems may have altered price transmission mechanisms, especially if collusion behaviors have appeared among domestic stakeholders along the marketing chain. I use threshold cointegration tools to analyze the dynamics of world price transmission to coffee growers in three deregulated markets. The methods I use allow me to test the presence of a threshold in both the cointegrating relationship and its corresponding error correction model. Over the pre-reform period, I detect asymmetric price adjustments that appear favorable to producers - deviations from the long-run equilibrium resulting from largest increases in world prices being eliminated relatively quickly - and disappear in the post-reform period. On the contrary over the post-reform period, the results suggest that largest decreases in world prices may be transmitted relatively quickly to growers. These results can be seen as expressions of a favorable pricing policy over the pre-reform period and an unfavorable influence of new private agents over the post-reform period, meaning that in some cases reforms may have failed to create competitive market structures.     

Fixed prices versus predetermined prices and the equilibrium probability of price adjustment

Elsewhere, papers comparing fixed prices with predetermined prices have assumed that the frequency of re-setting price contracts is equal in either case. This note demonstrates that in equilibrium, the frequency of re-setting price contracts is greater with fixed prices than predetermined prices.     

An econometric analysis of the effects of market liberalization on price dynamics and price volatility

The paper investigates price dynamics under market liberalization, with a focus on the effects of lowering price floors. We analyze price dynamics by specifying and estimating a dynamic Tobit model under time-varying volatility, where the market price is censored by a government-set support price. The model is applied to the U.S. butter market over the last three decades. The econometric results show how the price support program affects both expected prices and the volatility of prices. It is found that the censoring effects of a price support program can be significant and large even if the price support is set relatively low.