This paper outlines a simple macro model with overlapping wage contracts to investigate how the temporary and permanent components of stock price movements may be related to aggregate macro-economic supply and demand disturbances. In the content of the model, we show that aggregate demand shocks have only temporary effects on real stock prices, while supply shocks may affect the level of real stock prices permanently. Moreover, the temporary component in U.S. stock prices, identified by placing appropriate structural restrictions on a vector autoregressive system estimated for the postwar period, is statistically significant. This evidence supports the mean-reversion hypothesis that stock prices are not pure random walks. The finding is robust to the choice of variables used in the vector autoregressive system and periodicity. 相似文献
Consumers are attracted by high‐quality search results. Search engines, though, essentially compete against themselves because consumers are induced to substitute away from advertisement links when their organic counterparts are of high quality. I characterize the effect of such revenue cannibalization upon equilibrium quality when search engines compete for clicks. Cannibalization provides an incentive for quality degradation, engendering low‐quality equilibria—even when provision is costless. When consumers exhibit loyalty there is a ceiling above which result quality cannot rise, regardless of what the maximum feasible quality happens to be. Seemingly procompetitive developments may exert downward pressure on equilibrium quality. 相似文献
Very little attention has been given to understand the antecedents of service recovery performance in a public healthcare setting. In this study, a cross-sectional survey investigates a model of service recovery performance. Frontline hospital employees completed a self-administered questionnaire on how factors characterising management commitment to service quality (MCSQ) affect their service recovery efforts. The results suggest the influence of MCSQ is mediated by frontline employees' affective commitment to their hospital. The research advances understanding of frontline service recovery performance in a public healthcare setting and the findings indicate that public healthcare managers can take actions on a number of fronts to assist progress towards the achievement of frontline service recovery excellence.
The paper presents evidence that econometric techniques based on variance–L2 norm–are flawed and do not replicate. The result is un-computability of the role of tail events. The paper proposes a methodology to calibrate decisions to the degree (and computability) of forecast error. It classifies decision payoffs in two types: simple (true/false or binary) and complex (higher moments); and randomness into type-1 (thin tails) and type-2 (true fat tails), and shows the errors for the estimation of small probability payoffs for type 2 randomness. The fourth quadrant is where payoffs are complex with type-2 randomness. We propose solutions to mitigate the effect of the fourth quadrant, based on the nature of complex systems. 相似文献
This paper reports the results of a stated preference study that estimates the economic value for cleaning up acid rock drainage in Colorado's Snake River watershed. In contrast to much of the existing literature, the present study emphasizes benefit estimation for three implementing projects rather than benefit estimation for general changes in water quality or large scale water quality policy. The focus on implementing projects delivers information that is specifically relevant to current decisions being faced in the watershed. While valuation questions in most stated preference studies present costs that have no relation to actual project costs, this study presents a new cost share approach. Project costs are estimated and then valuation questions present different local cost shares to subjects. This approach facilitates stated cost variation necessary for estimating the mean of the distribution of project values without resorting to experimentally designed, fictitious stated costs. In addition to estimating the mean value, which facilitates benefit cost analysis, the study also provides median value estimates, which provide insights into the political feasibility of these projects. Study results suggest that local cost shares on the order of 20%-40%, depending on the project, are politically feasible. 相似文献
This paper presents the comparison of how financial market and accounting data affect stock prices and returns. The goal was to ascertain whether financial information or accounting data dominate in evaluating stock prices. Most valuation techniques used by firms are based on models using either accounting variables (earnings, book value, cash flows, research and development expenses) or financial market data (e.g. beta, market value, interest). The answer is of great importance for valuators and investors as it will help them focus on the most important variables and make better valuations and choices. This answer is also important for accounting standard setters as the preferred method will serve as an indicator for the quality of financial statements and their importance to users. The paper contributes to the existing literature in the fields of value relevance of accounting information and firm valuation and accounting standards (e.g. International Financial Reporting Standards, United States General Accepted Accounting Principles). To answer this question, share prices were estimated based on financial data using the capital asset pricing model and for accounting data, using Ohlson’s model. The results were tested for both methodologies by comparing estimated share prices with actual ones. The greater the correlation between the two variables the better the explanatory power of the model. The focus was on S&P 500 firms for the period 2002–2017.
A bstract . This paper is an analysis of the demand for thoroughbred racetrack wagers, examining evidence that would support the existence of two types of bettors: the risk-averse informed bettor versus the uninformed bettor. Looking at 12 major racetracks over the fall of 2002, we undertake an empirical examination of the determinants of bettors' preferences for particular wagers on specific races. The goal is to try to determine what individual aspects of a race (conditions, surface, participants, etc.) will encourage increased wagering dollars. With the advent of simulcasting, the competition for the wagering dollar is fierce, as the bettor can choose from more than 100 races daily, each race offering numerous betting options. We find for most wagers that higher quality participants, larger and more competitive fields, and turf races increase betting volume while higher pari-mutuel takeout, poor track conditions, and other races run concurrently reduce volume. However, more competitive fields reduce betting volume in the show and trifecta pools. Optimal field size is determined to be between 10 and 12 betting interests. Overall, we find support for the existence of a significant share of risk-averse informed bettors. 相似文献
This paper develops a model of costly trade and team production to examine the matching behavior of skilled workers in an open economy. Trade liberalization changes the supply of skilled production teams available for hire, even when firm production techniques remain fixed. As trade barriers fall, some workers choose to quit small firms in order to accept less skill intensive jobs at large firms that participate in foreign markets. Changes in worker matching behavior can explain several stylized features of firm-level adjustments to trade, with effects that are not limited to firms on the margin of exit or exporting. Trade is shown to rationalize the matching behavior of workers, leading to aggregate gains in productivity and lower prices. Openness benefits workers employed at exporting firms, however the likelihood of gaining from trade is not necessarily increasing in skill. Wages in the open economy are tied to both worker skill and job type. 相似文献
We develop a model in which costly voting in a large, two‐party election is a sequentially rational choice of strategic, self‐interested players who can reward fellow voters by forming stronger ties in a network formation coordination game. The predictions match a variety of stylized facts, including explaining why an individual's voting behavior may depend on what she knows about her friends' actions. Players have imperfect information about others' voting behavior, and we find that some degree of privacy may be necessary for voting in equilibrium, enabling hypocritical but useful social pressure. Our framework applies to any costly prosocial behavior. 相似文献