The role of regulation, fiscal incentives and changes in tastes in the diffusion of unleaded petrol

This paper analyses the diffusion of unleaded petrol in theUK. Changes in the market share of unleaded fuel are the resultof changes in the composition of the car stock and changes inthe choice of fuel given the car stock. We find that fuel typechoices have been mainly driven by changes in tastes and learningas opposed to changes in relative prices induced by fiscal incentives.However car stock composition effects dominate the diffusionprocess and we find that through this route regulatory changeshave made major contributions to changes in the market shareof unleaded fuel.     

Income concentration and market demand

We analyze the effects of income concentration and income dispersionon market demand and its elasticity. We show that, followingan increase in income concentration towards the middle (measuredby variations in mean preserving spread), the increase in demandfaced by firms which serve at the margin middle income consumers,is associated with an increase in price elasticity—accordingly,the positive effects of the size of the market becoming widerare amplified by a higher degree of competition. Our resultshold for a large number of possible income distributions.     

A MODEL OF MONOPOLISTIC COMPETITION WITH PERSONAL INCOME DISPERSION

We introduce non‐homothetic preferences in the Dixit–Stiglitz model of monopolistic competition, and enquire about the effects of a change in income dispersion on the firms’ optimal decisions and market equilibrium. Income dispersion, modeled as a mean preserving spread, is shown to affect only the degree of product differentiation under the standard negligibility hypothesis on the firms’ decision making process, while it generates a positive co‐movement of demand and demand elasticity, when this assumption is removed and the price index effect is taken into account.     

Risk Aversion,Uncertain Information,and Market Efficiency

Abstract. We reexamine and extend tests of the uncertain information hypothesis (UIH) proposed by Brown, Harlow, and Tinic (1988, 1993). We find that their empirical results are sensitive to the sampling procedure employed and that their particular methodology does not sufficiently distinguish between event and nonevent periods. When the sampling procedure is modified to identify only relatively large, isolated events, the test results generally do not support the UIH. Instead, significant price shocks are consistently followed by short-lived price reversals. We observe this behavior following positive and negative events regardless of whether the event is classified as risk increasing or risk decreasing.     

Teaching Keynes’s Principle of Effective Demand within the Real Wage vs. Employment Space

This paper reviews several models for teaching Keynes’s principle of effective demand with a special focus on a framework that is familiar to advanced undergraduate students of macroeconomics: the real wage vs. employment space. It is argued that existing approaches to teaching Keynes’s principle of effective demand reflect a tension between two goals: being true to Keynes and translating the effective-demand principle into a story about real wages and employment within a single graphical space. Our main contribution consists of presenting an extended version of a model originally proposed by Lavoie (Rev Radic Polit Econ, 35(2):166–182, 2003), which seems to be a reasonable compromise between these two goals.     

Dissipation of Knowledge and the Boundaries of the Multinational Enterprise

This paper provides a theoretical formalization of the joint-venture contract, as an alternative to foreign direct investment (FDI), within a Dissipation of Intangible Assets (DIA) framework. In a two-period model, we discuss how the threat of knowledge spillover shapes the boundaries of a multinational enterprise (MNE). Similarly to the theoretical findings on the FDI-licensing trade-off, we show that the integrated solution is more likely to emerge when know-how easily spills over—i.e., when firms are endowed with more intangible assets or they belong to high-tech industries. Probit estimates, from a new firm-level data set, show that Japanese manufacturing operations in Europe are in line with these predictions. JEL no. F23, C25, O5     

Abatement and Allocation in the Pilot Phase of the EU ETS

We use historical industrial emissions data to assess the level of abatement and over-allocation that took place across European countries during the pilot phase (2005–2007) of the European Union Emission Trading Scheme. Using a dynamic panel data model, we estimate the counter factual (business-as-usual) emissions scenario for EU member states. Comparing this baseline to allocated and verified emissions, we find that both over-allocation and abatement occurred, along with under-allocation and emissions inflation. Over the three trading years of the pilot phase we find over-allocation of approximately 280 million EUAs and total abatement of 247 Mt CO₂. However, we calculate that emissions inflation of approximately 73 Mt CO₂ also occurred, possibly due to uncertainty about future policy design features.     

Testing for abnormal security-price performance under conditions of event-period uncertainty

This paper examines an event study test procedure based on cumulative average residuals (CARs) and a boundary-crossing probability for Brownian motion. The boundary-crossing test procedure is designed to detect abnormal security-price performance under conditions of event-period uncertainty. Simulations with daily security-return data show that the boundary-crossing test is well specified under the null hypothesis and has good power properties under the alternative hypothesis of abnormal security-price performance distributed over an event period of uncertain length.