Reputations, Relationships and the Enforcement of Incomplete Contracts

This paper discusses the literature on the enforcement of incomplete contracts. It compares legal enforcement to enforcement via relationships and reputations. A number of mechanisms, such as the repeat purchase mechanism (Klein and Leffler (1981)) and efficiency wages (Shapiro and Stiglitz (1984)), have been offered as solutions to the problem of enforcing an incomplete contract. It is shown that the efficiency of these solutions is very sensitive to the characteristics of the good or service exchanged. In general, neither the repeat purchase mechanism nor efficiency wages is the most efficient in the set of possible relational contracts. In many situations, total output may be increased through the use of performance pay and through increasing the quality of law.contract, law and economics, reputation, repeated games, incomplete contracts, transactions costs, institutional economics, contract enforcement

Limitation of Sales Warranties as an Alternative to Intellectual Property Rights: An Empirical Analysis of IPhone Warranties’ Deterrent Impact on Consumers

Apple\u27s success with the Apple iPhone has brought with it certain problems. Its success has engendered a community that has attempted to circumvent Apple\u27s exclusive service agreement with AT&T. Unfortunately for Apple (and similarly situated manufacturers), intellectual property law allows consumers to alter their products so as to circumvent relationships that manufacturers may have with others. The patent and copyright law first sale doctrine allows consumers to manipulate a product after it is purchased. As a result, manufacturers are increasingly turning to alternatives to intellectual property to secure control over the device after the sale. One such alternative is the exclusion of warranty under Article 2 of the Uniform Commercial Code. This iBrief considers whether limitation of warranties have the deterrence effect manufacturers desire. Said differently, it considers whether manufacturers can use warranty limitations to prevent consumers from using their products in an unauthorized manner. The iBrief presents a behavioral model based on the Triandis model of planned behavior and enhances the model by accounting for likely and unlikely benefits and detriments. The model suggests that participants weigh the probability and magnitude of the detriment against the probability and magnitude of the beneficial impact when making the decision to engage in technological piracy. This model, considered with other empirical evidence, suggests that Apple\u27s warranty could be a stronger deterrent for consumers than civil liability. The iBrief concludes that manufacturers can better protect their post-sale expectation of profits by raising consumer awareness of their warranty\u27s quality and by raising awareness of the consequences for using the product in a way that is outside the terms of the consumers\u27 authorized use

System Analysis in the Environmental Science

The paper discusses the essence, structure, research objects, methods and aims of the environmental science. Due to interdisciplinary character of the environmental science, large scale term and vague boundaries with other sciences there are various definitions of environmental science and different concepts, sometime delusions in research fields and methods . Author analysed the current location of research objects in environmental science and their connection with other sciences and came to conclusion that up to nowadays there are not developed essential part of every independent science yet – general theoretical base of environmental science. It is necessary to find out perfect proper research fields and objects of environmental science, which differ from other natural , and technical sciencies. Analysis showed that the objects of environmental science must be neither nature nor technology itself but only contact zones between technosphere and biosphere –namely, between systems – technosystems and ecosystems . Exactly in these contact zones arises most environmental problems , conflicts and stresses between human activities and nature. The properties and processes in these zones obey to laws which must be determined, interpreted and used for mankind wealth. It is the aim of environmental science and the complex system analysis must be essential research methodology and accordingly system engineering as instrument for solving practical environmental problems

Learning occupants’ indoor comfort temperature through a Bayesian inference approach for office buildings in United States

A carefully chosen indoor comfort temperature as the thermostat set-point is the key to optimizing building energy use and occupants’ comfort and well-being. ASHRAE Standard 55 or ISO Standard 7730 uses the PMV-PPD model or the adaptive comfort model that is based on small-sized or outdated sample data, which raises questions on whether and how ranges of occupant thermal comfort temperature should be revised using more recent larger-sized dataset. In this paper, a Bayesian inference approach has been used to derive new occupant comfort temperature ranges for U.S. office buildings using the ASHRAE Global Thermal Comfort Database. Bayesian inference can express uncertainty and incorporate prior knowledge. The comfort temperatures were found to be higher and less variable at cooling mode than at heating mode, and with significant overlapped variation ranges between the two modes. The comfort operative temperature of occupants varies between 21.9 and 25.4 °C for the cooling mode with a median of 23.7 °C, and between 20.5 and 24.9 °C for the heating mode with a median of 22.7 °C. These comfort temperature ranges are similar to the current ASHRAE standard 55 in the heating mode but 2–3 °C lower in the cooling mode. The results of this study could be adopted as more realistic thermostat set-points in building design, operation, control optimization, energy performance analysis, and policymaking

Policy analysis using DSGE models: an introduction

Many central banks have come to rely on dynamic stochastic general equilibrium, or DSGE, models to inform their economic outlook and to help formulate their policy strategies. But while their use is familiar to policymakers and academics, these models are typically not well known outside these circles. This article introduces the basic structure, logic, and application of the DSGE framework to a broader public by providing an example of its use in monetary policy analysis. The authors present and estimate a simple New Keynesian DSGE model, highlighting the core features that this basic specification shares with more elaborate versions. They then apply the estimated model to study the sources of the sudden increase in inflation that occurred in the first half of 2004. One important lesson derived from this exercise is that the management of expectations can be a more effective tool for stabilizing inflation than actual movements in the policy rate. This result is consistent with the increasing focus on the pronouncements of central bankers regarding their future actions.Econometric models ; Stochastic analysis ; Keynesian economics ; Inflation (Finance) ; Monetary policy ; Banks and banking, Central

Search, Obfuscation, and Price Elasticities on the Internet

We examine the competition between a group of Internet retailers that operate in an environment where a price search engine plays a dominant role. We show that for some products in this environment, the easy price search makes demand tremendously price-sensitive. Retailers, though, engage in obfuscation---practices that frustrate consumer search or make it less damaging to firms---resulting in much less price sensitivity on other products. We discuss several models of obfuscation and examine its effects on demand and markups empirically. Observed markups are adequate to allow efficient online retailers to survive.

MODELLING CONSUMER BEHAVIOUR ON THE ENERGY MARKET

Consumer behavior models make it possible to visually present in charts researched entities and the processes they go through, as well as the changes which occur should some variables which affect those processes change. The objective of this paper is to design a meaningful model which may be employed to describe in detail consumer behavior in the process of purchasing energy. The subject of the research is energy consumers, while its objects are the models which could be employed to describe consumer behavior when consuming energy. The analysis we conducted indicated that in order to accomplish our objective we need to account for emotional responses, norms and social factors and major economic variables (prices, incomes, prices of substitute goods)