Price characterization of stable allocations in exchange economies with externalities

A pure exchange economy where the consumers have utility functions U_i(v₁(x₁),…, v_m(x_m)) for i = 1,…, m and where x_j is the consumption of consumer j, is studied. U_i may be nonincreasing or nondecreasing in v_j for j ≠ i. i is said to be nonbenevolent or nonmalevolent towards j, accordingly.An allocation is stable if no coalition can redistribute what it receives in the allocation to get an allocation which is preferred, given the consumptions of the consumers in the complementary coalition. Results concerning the relation among the Paretooptimal, stable and equilibrium allocations (under different definitions of equilibrium) are given. In particular, it turns out that in case every consumer is non-benevolent towards every other consumer, the classical results, concerning the relation between Paretooptimal allocations and equilibrium allocations, can be generalized in a satisfactory way.     

Imperfect Competition in German Food Retailing: Evidence from State Level Data

An increase in the level of retail concentration in food markets across Europe has raised concerns about the implications of retail dominance in the food supply. This paper measures oligopoly and oligopsony market power in the German food retail industry and incorporate specific details about the German meat market and the European BSE crisis. In this paper, simultaneous estimates of the degree of oligopoly and oligopsony market power in the German food retail industry are derived by applying a set of monthly state level retail beef and pork marketing data in the federal state of Hessen, Germany, from 1995–2000. Results strongly suggest evidence of retail oligopoly and oligopsony power. Lerner index estimates indicate retail market power accounts for 0.5% to 11% of the retail unit margins of beef and pork.

Efficiency in one-sector,discrete-time,infinite-horizon models

In recent years, a considerable number of papers have been devoted to the problem of characterizing efficient programs in infinite-horizon models. In the present paper on one-sector models, it is shown that (1) the study of production or consumption efficiency can be reduced to the study of a single model, and (2) certain measures of curvature are crucial for the efficiency of programs. Criteria for efficiency of programs using these curvature measures are given and it is indicated how the existing results in the field can be obtained using the present criteria.     

The Austrian Tertius Gaudens: A Revisit of Competition Theory in Light of Georg Simmel

Austrian market process theory stands out in assigning particular importance to the role of the customer. This is however not really salient as competition is discussed save for in a few particular instances. This is a pity since the market process discourse thereby deprives itself of a firm progressive footing concerning further elaborations of how market dynamics evolve. By drawing on the reasoning that originates some hundred years ago with the works of Georg Simmel, this paper brings forward an Austrian version of his idea on Tertius Gaudens. In a market context this is the alert buyer who benefits from the disunion that prevails between sellers to the extent that market intimacy, conceived of as supplier specificity, is low. In this manner some of the inner workings of the market process, what promotes competition subject to which institutional constraints, are discussed to the benefit of yet another important Austrian demarcation, that of competition as being geared by the customer.     

A linear demand system within a seemingly unrelated time series equations framework

A seemingly unrelated time series equations framework for the linear almost ideal (AID) demand system is considered. The framework is applied to a consumer demand system covering nine non-durable commodities. Within a specification where the static linear AID system is augmented by latent variables representing stochastic trends and seasonality, demand homogeneity is tested; both in each equation and in the system as a whole. Income and own-price elasticities are calculated under homogeneity restrictions. Although the homogeneous model is formally rejected by statistical tests, it performs well with respect to interpretability, parameter stability and forecasting.     

Performance Management: Perceiving Goals as Invariable and Implications for Perceived Job Autonomy and Work Performance

In this study, we investigated whether perceiving goals as invariable is negatively related to work performance and whether this relationship is mediated by perceived job autonomy. Perceiving goals as invariable refers to the extent to which employees believe that the goals in a performance management system represent absolute standards that they must meet without exception, even if they think other factors are more important (e.g., situational factors or factors that are not associated with goals). In support of our hypotheses, we found a negative relationship between perceiving goals as invariable and work performance and that perceived job autonomy mediated this relationship. Theoretical and practical implications and directions for future research are discussed. © 2014 Wiley Periodicals, Inc.     

The Shareholder Base Hypothesis of Stock Return Volatility: Empirical Evidence

We use Swedish ownership data to explore whether a large and diversified shareholder base leads to lower volatility by improving the information content of stock prices. We find that volatility increases in the number of shareholders with respect to both the number of relatively large shareholders and the fraction of shares held by investors with stakes below 0.1%. Volatility is also positively related to the number of institutional owners but negatively related to the number of large and underdiversified institutional owners. Foreign investors have no impact. Our results suggest that a large shareholder base does not lower volatility.     

Seasonal asymmetries in wholesale–retail cost pass-through

This article investigates the extent of seasonal asymmetries in wholesale to retail cost pass-through in the Canadian apple market. We model nonlinearity in cost pass-through in a panel two-regime error correction model. The model employs weekly store-level retail matching wholesale price data for a major US retail chain. Our results reveal distinct seasonal asymmetries in cost pass-through. Retail prices adjust faster during the fall indicating significantly higher pass-through in response to a change in input composition and seasonal expansion of alternative marketing channels. This input composition effect on cost pass-through highlights the general importance of time-variant market conditions and their respective determinants in explaining cost pass-through dynamics in commodity markets.