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1.
How much economic value did broadband Internet create? Despite the importance of this question for national policy, no research has estimated broadband's incremental contribution to U.S. GDP by calibrating against historical adoption and incorporating counterfactuals. This study provides benchmark estimates for 1999 through 2006 and finds that broadband accounts for $28 billion of the $39 billion observed in 2006. Depending on the estimate, households generated $20-$22 billion of broadband revenue and approximately $8.3-$10.6 billion was additional revenue created between 1999 and 2006. Consumer surplus accounted for $4.8-$6.7 billion of this amount, which is not measured in GDP. An Internet-access Consumer Price Index would have to decline by 1.6-2.2% per year for it to reflect this unmeasured value. These estimates differ from existing benchmarks by an order of magnitude and relate to several policy debates.  相似文献   
2.
In this paper we look at the impact of broad policy reforms on the levels of corruption. We use a structural break approach to identify country-specific time periods in which significant shifts in corruption levels take place. We then correlate these times of change with a set of covariates with specific focus on the impact of democratization, and trade and equity market liberalization. We find robust support for the hypothesis that episodes of reduction in corruption levels tend to be correlated with democratization and equity market liberalization.  相似文献   
3.
The challenge for agricultural production in the 21st century is to produce sufficient high-quality food whilst minimizing impact. Life cycle assessment (LCA) can help by identifying the parts of a supply chain with the greatest environmental impact, and to determine which technologies – for example plant breeding – may be most appropriately employed to minimize negative impacts. A ‘plough-to-plate’ LCA of a porridge oat production chain was undertaken using data that corresponds to the inputs and outputs of an indicative supply chain. The greatest environmental impact of the porridge oats life cycle occurs in crop production and cooking. There are traits for oats that are available for manipulation by plant breeders, which can influence these areas; these include yield, nitrogen use efficiency and beta-glucan content. Therefore plant breeding may be a useful strategy for improving the sustainability of the crop. However LCA cannot be a definitive tool to guide plant breeding and therefore this approach needs to compliment others. Nevertheless this study highlights that porridge oat supply chain sustainability would benefit from an integrated effort stretching from the geneticist to consumer; a finding that is likely to be relevant to other food supply chains.  相似文献   
4.
FX spreads and dealer competition across the 24-hour trading day   总被引:1,自引:0,他引:1  
This study examines the impact of competition on bid-ask spreadsin the spot foreign exchange market. We measure competitionprimarily by the number of dealers active in the market andfind that bid-ask spreads decrease with an increase in competition,even after controlling for the effects of volatility. The expectedlevel of competition is time varying, highly predictable, anddisplays a strong seasonal component that in part is inducedby geographic concentration of business activity over the 24-hourtrading day. Our estimates show that the expected addition ofone more competing dealer lowers the average quoted spread by1.7%  相似文献   
5.
The components of the bid-ask spread: a general approach   总被引:22,自引:0,他引:22  
A simple time-series market microstructure model is constructedwithin which existing models of spread components are reconciled.We show that existing models fail to decompose the spread intoall its components. Two alternative extensions of the simplemodel are developed to identify all the components of the spreadand to estimate the spread at which trades occur. The empiricalresults support the presence of a large order processing componentand smaller, albeit significant, adverse selection and inventorycomponents. The spread components differ significantly accordingto trade size and are also sensitive to assumptions about therelation between orders and trades.  相似文献   
6.
Account-based health plans (ABHPs), which combine high-deductible plans with either health reimbursement arrangements (HRAs) or health savings accounts (HSAs), have gained popularity in recent years. Because there is growing evidence these plans are indeed engaging consumers and moderating cost increases, employers will need ABHP design options as they strive to bring costs under control in coming years. Some observers, however, are now concerned that benefits standards introduced by federal health care reform will undermine these plans, and many in the business community anticipate new health benefits mandates will drive up employers' total health care costs. The authors show that although the Patient Protection and Affordable Care Act (PPACA) of 2010 includes numerous provisions that will likely increase costs for employers, the law also accommodates, and may even foster, HSAs and HRAs.  相似文献   
7.
A Model of Ethical Decision Making: The Integration of Process and Content   总被引:1,自引:0,他引:1  
We develop a model of ethical decision making that integrates the decision-making process and the content variables considered by individuals facing ethical dilemmas. The process described in the model is drawn from Janis and Mann’s [1977, Decision Making: A Psychological Analysis of Conflict Choice and Commitment (The Free Press, New York)] work describing the decision process in an environment of conflict, choice and commitment. The model is enhanced by the inclusion of content variables derived from the ethics literature. The resulting integrated model aids in understanding the complexity of the decision process used by individuals facing ethical dilemmas and suggests variable interactions that could be field-tested. A better understanding of the process will help managers develop policies that enhance the likelihood of ethical behavior in their organizations. Roselie McDevitt Sc.D. is Assistant Professor of Accounting at␣the Charles F. Dolan School of Business at Fairfield University in Fairfield, Connecticut. Dr. McDevitt teaches financial and managerial accounting. Her Primary areas of research are accounting education and accounting ethics. Catherine Giapponi is an Assistant Professor of Management at the Charles F. Dolan School of Business at Fairfield University in Fairfield, Connecticut. Dr. Giapponi teaches courses in management, organizational behavior, and strategy. Her primary areas of research are corporate governance and business ethics. Cheryl Tromley, Ph.D., is a Professor of Management at␣Fairfield University where she has taught management, organizational behavior, organizational communication, organizational␣culture, organization development, and diversity for 19 years. She has co-authored two editions of the text ``Developing Managerial Skills in Organizational Behavior'␣as well authored or co-authored a significant number of professional articles and presentations related to management and management education.  相似文献   
8.
Volatility in the foreign currency futures market   总被引:4,自引:0,他引:4  
We examine the volatility implications of around-the-clock foreignexchange trading with transaction data on futures contractsfrom the Chicago Mercantile Exchange and the London InternationalFinancial Futures Exchange. We find higher U.S.-European andU.S.-Japanese exchange-rate volatilities during U.S. tradinghours and higher European cross-rate volatilities during Europeantrading hours. While the disclosure of private information throughtrading may partly explain these volatility patterns, we concludethat the increased volatility is more likely driven by macroeconomicnews announcements. An analysis of inter- and intraday dataalso reveals that volatility increases at times that coincidewith the release of U.S. macroeconomic news.  相似文献   
9.
We consider the relationship between market structure and health outcomes in a setting where patients have stark preferences: urology patients disproportionately match with a urologist of the same gender. In the United States, however, fewer than 6% of urologists are women despite women constituting 30% of patients. We explain a portion of this disparity with a model of imperfect competition in which urology groups strategically differentiate themselves by employing female urologists. These strategic effects may influence women's health, as markets without a female urologist have a 7.3% higher death rate for female bladder cancer, all else equal.  相似文献   
10.
The paper sets the neoclassical monetary business cycle model within endogenous growth, adds exchange credit shocks, and finds that money and credit shocks explain much of the velocity variations. The role of the shocks varies across subperiods in an intuitive fashion. Endogenous growth is key to the construction of the money and credit shocks because these have similar effects on velocity, but opposite effects upon growth. The model matches the data's average velocity and simulates well velocity volatility. Its Cagan-like money demand means that money and credit shocks cause greater velocity variation, the higher is the nominal interest rate.  相似文献   
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