Price Dispersion and the Role of Stores*

In this paper, we study price dispersion in the Norwegian retail market for 766 products across 4,297 stores over 60 months. Price dispersion for homogeneous products is significant and persistent, with a coefficient of variation of 37 percent for the median product. Price dispersion differs between product categories and over time. Store heterogeneity accounts for 30 percent of the observed variation in prices for the median product–month, and for around 50 percent for the sample as a whole. Price dispersion is still prevalent after correcting for store heterogeneity.     

Dynamic elasticities of tax revenue: evidence from the Czech Republic

Tax revenue elasticities with respect to tax bases are key parameters for the modeling of public finances. Yet the existing studies estimating these elasticities for emerging countries disregard the effects of tax reforms on tax revenue, which renders their estimates inconsistent. We introduce a framework for estimating both short- and long-run tax revenue elasticities using quarterly data adjusted for the effects of reforms. Our results suggest that the long-run elasticities in the Czech Republic are 1.4 for wage tax, 0.9 for value added tax, 1.7 for profit tax and 1 for social security contributions. The adjustment process for value added tax and social security contributions is fast, but for the remaining two categories, it is important to distinguish between the short- and long-run elasticities: the initial response of revenue to changes in the bases is weak. In the case of wage tax it takes half a year for the elasticity to surpass unity.     

Simulation Analysis of Public Debt and Fiscal Deficit in Austria – Optimal Economic Policies for the Past and the Future

The macroeconometric simulation model AMOD1 and the optimization algorithm OPTCON are used to evaluate fiscal policies for Austria since the late seventies. In particular, the question of optimal (debt stabilizing) fiscal policies for the past and for the future is analyzed within the framework of a medium-scaled simulation model. The first set of optimization experiments aims to assess optimal fiscal policies for debt stabilization for the historical period 1978–2000 while trying to maintain reasonable growth rates of approximately 2 percent of real GDP. Optimal values of the instruments and the targets are compared to empirical data for Austria. A second set of simulations calculates optimal paths for the fiscal instruments for the period 2001-2010, particularly with respect to the criteria of the Stability and Growth Pact, which is mandatory for member states of the Euro zone.     

Entrepreneurial innovations,competition and competition policy

We construct a model where an entrepreneur can innovate for entry or for sale. It is shown that increased product market competition tends to increase the relative profitability of innovation for sale. Increased competition not only reduces the profits of entrants and the acquirer of the inventions in a similar fashion, but also reduces the profit of non-acquirers. Therefore, incumbents' valuations of innovations are less negatively affected by increased competition, and the incentive for innovation for sale can increase with increased competition. Moreover, a stricter, but not too strict, merger policy is shown to increase the incentive for innovations for sale by ensuring the bidding competition for the innovation.     

Demand for money in the selected OECD countries: a time series panel data approach and structural breaks

Time series panel data estimation methods are used to estimate the cointegrating equations for the demand for money (M1) for a panel of 11 Organization for Economic Cooperation and Development (OECD) countries for which consistent quarterly data are available. The effects of financial reforms are analysed with structural break tests and estimates for alternative sub-samples. Our results for the post-reform sub-samples show that the income elasticity of the demand for money has decreased and response to interest rate changes has increased.     

Cointegration analysis of quarterly tourism demand by Hong Kong and Singapore for Australia

Hong Kong and Singapore are two of the most important and fastest growing markets for tourists to Australia. The purpose of this paper is to investigate movements in the long-run demand for tourist travel by these two origin countries for Australia. Some of the leading macroeconomic variables examined to explain tourism demand are incomes in Hong Kong and Singapore, tourism prices in Australia, and transportation costs and exchange rates between the two countries and Australia. Seasonally unadjusted quarterly data are used for Hong Kong for the period 1975(1)–1996(4), and for 1980(4)–1996(4) for Singapore. Several proxy variables are used for the incomes of tourists from Hong Kong and Singapore to explain quarterly tourist arrivals to Australia. The augmented Dickey-Fuller test for unit roots is examined in the univariate framework, and Johansen's maximum likelihood procedure is used to test for cointegration and to estimate the number of cointegrating vectors. Error correction models are estimated to explain quarterly tourism demand by Hong Kong and Singapore for Australia.     

奥运科技成果应用及转化分析

对北京科技奥运8大领域项目承担单位的分布情况进行了统计,总结了奥运科技成果的应用状况,分析了奥运科技成果的应用前景,并有针对性地提出在各领域奥运科技成果转化的对策。     

Is the Income Elasticity of the Willingness to Pay for Pollution Control Constant?

How willingness to pay for environmental quality changes as incomes rise is a central question in several areas of environmental economics. This paper explores both theoretically and empirically whether or not the willingness to pay (WTP) for pollution control varies with income. Our model indicates that the income elasticity of the marginal WTP for pollution reduction is only constant under very restrictive conditions. Our empirical analysis tests the null hypothesis that the elasticity of the WTP for pollution control with respect to income is constant, employing a multi-country contingent valuation study of eutrophication reduction in the Baltic Sea. Our findings reject this hypothesis, and estimate an income elasticity of the WTP for eutrophication control of 0.1–0.2 for low-income respondents and 0.6–0.7 for high-income respondents. Thus, our empirical results suggest that the elasticity is not constant but is always less than one. This has implications for how benefits transfer exercises, and for theoretical explanations of the environmental Kuznets curve.     

VALUING REDUCED RISKS TO CHILDREN: THE CASE OF BICYCLE SAFETY HELMETS

The protection of children's health has recently become a mandated priority for federal policy makers. To assess many of the regulations that affect children's health, policy makers need estimates of the monetary value of reducing mortality risks to children. Although the economics literature has provided many estimates of the value of statistical life (VSL) for adult populations, it has provided none for school age children. This article studies the market for bicycle safety helmets and estimates for the first time a separate but comparable VSL for children and adults. We derive three estimates of VSL for each of three age categories (5 to 9, 10 to 14, and 20 to 59) that range from $1.1 to $4.0 million. In all cases, estimates for adults are highest, followed by estimates for the youngest children.     

The weak form efficiency of the London Metal Exchange

Filter techniques are used to test for dependency and weak form efficiency on the London Metal Exchange. They are applied to daily cash and futures prices for copper, lead, tin and zinc, for the period 1972-1982. The results are adjusted for the bias in filter tests caused by the upward trend of prices. An exact test statistic is derived; doubts are raised however about its reliability. The results show strong evidence of inefficiency for copper, weaker but positive evidence for lead and zinc, and no evidence at all for tin.     

Universal telecommunication service: A world perspective

Worldwide telecommunications demand is estimated in models for business and residential mainline telephone, and for mobile telephone service using separate models for developed and developing countries for the period 1996–2001. We test for cross-price elasticities between mainline and mobile service and find that the results are generally suggestive of current complementary relationships. We find residential monthly price elasticity to be no different than zero for a sample of developing countries, but the connection elasticity is statistically significant. Mobile monthly service elasticity is much larger than those for mainline service, suggesting that universal service in developing countries might be promoted more effectively with subsidies for mobile service. Income elasticities for the residential model are modest while the mobile service model income elasticity for developing countries is much higher. Expanding markets, income growth and enhanced education may be the ultimate universal service promoters.     

The transactions demand for money in the presence of currency substitution: evidence from Vietnam

Currency substitution – the use of foreign money to finance transactions between domestic residents – is widespread in low income and transition economies. Traditionally, however, empirical models of the demand for money tend to concentrate on the portfolio motive for holding foreign currency, while maintaining the assumption that the income elasticity of demand for domestic money is invariant to the degree of currency substitution. A simple re-specification of the demand for money is offered which more accurately reflects the process of currency substitution by allowing for a variable income elasticity of demand for domestic money. This specification is estimated for Vietnam in the 1990s. Using a standard cointegration framework evidence is found for currency substitution only in the long-run but well-defined wealth effects operating in the short-run.     

Demand for Environmental Quality: An Empirical Analysis of Consumer Behavior in Sweden

In this paper we estimate the income elasticity of demand for recreational services and other traditional groups of goods in Sweden and test for potential changes in such estimates over the twentieth century. Due to the difficulty of directly observing the demand for recreational services, we employ an indirect methodology by using the demand for some outdoor goods as a proxy for the demand for recreational services. In line with most prior research, our results confirm the expectation that recreational services, as a public good, is a luxury good in Sweden. Our results also show that the income elasticities for traditional goods are stable over time, indicating that consumer preferences for expenditure on these specific commodities do not change over time.      

An incentive pricing with two types of qualities and users

This paper analyses quality discrimination when the monopolist provides two types of qualities for two-types of users, for example, in the software market. The users using software are confronted with two types of quality in using the software: one is related to learning, while the other is operation. In addition, the users are discriminated by the frequency of utilization for software, for example, low-demand and high-demand users. In this paper, the characteristics for bi-directional quality distortion in both learning quality and operation quality are analysed. It is shown that the distortion can occur both for low demanders and for high demanders. Finally, from public policy, a subsidy mechanism is introduced.     

Estimates of price elasticity of demand for urban freeway use with high-frequency control variables: the case of Santiago,Chile

Estimates are presented of toll and fuel price elasticities of demand for urban freeway use in Santiago, Chile. High-frequency toll and vehicle data were collected from four urban freeways for different route segments and times of day. Estimation was performed using log-linear regression models whose explanatory variables were tolls, fuel prices, city traffic levels and sets of dichotomous variables to control for daily, weekly and monthly seasonality. City traffic is a high frequency control of the activity level of the city. The elasticities to changes in tolls and fuel were all low in absolute value. The toll elasticities were below 0.05 for two freeways and 0.16 for the third, while for the fourth, which had more alternative routes, it was 0.47. The fuel price elasticities were also heterogeneous, with values of approximately 0.45 for two freeways and 0.21 for the third whereas for the fourth, which had the fewest alternatives, it was 0.07.     

The economic costs to fisheries because of marine sand mining in Ongjin Korea: Concepts, methods, and illustrative results

We illustrate a methodology for estimating the damages to commercial fisheries from entrainment and from temporary loss of seafloor habitat productivity because of marine sand mining. A Beverton-Holt, year-class model is used to estimate illustrative short-term, long-term, and indirect (food web) effects from the inception of mining through the time to recovery of the injured resource stocks. A Base Case analysis evaluates hypothetical mining for a 4 km² mining site with biological recovery of the mined area beginning seven months after mining ceases and the bottom excavation fills in. Sensitivity analyses also are used to illustrate damages for alternative recovery paths and for 20 hypothetical mining sites for one year of mining and for recurring mining for 5 and for 10 years. Important qualifications and directions for further research are outlined.     

RATIONALE FOR DISSENT: THE CASE OF FOMC MEMBERS

This paper investigates monetary policymakers' rationale for dissent to test for a hypothesized difference in policy preferences between bank presidents and members of the Board of Governors. The paper analyzes the cited reasons for dissent, the identity of the dissenter, and uses multiple regression to make inferences regarding the differences.
Examining the identity of dissenters and the given reasons for dissent yields four conclusions, (i) A broad base of bank presidents dissent for tighter policy because they want to control inflation by keeping monetary aggregates within targeted ranges. (ii) On the other hand, board members' dissent for tighter policy is dominated by one man–Henry Wallich—who apparently was disturbed by the inflationary outbreak during the late 1970s and early 1980s. (Hi) Several board members dissent for looser policy to stimulate the real economy, (iv) But only a few bank presidents, primarily from the Northeast, dissent for looser policy with the same objective.
Regression analysis supports the assertion that bank presidents dissenting for tighter policy do so to keep monetary aggregates on target in order to control inflation. The analysis confirms Wallich's focus on inflation during the late 1970s and early 1980s. It also allows for the possibility that the various board members dissenting for looser policy either have an inherent preference for looser policy or have diverse reasons for dissent.     

企业专利申请策略探讨

有效的专利申请策略是企业改善专利申请质量,提高专利拥有量和质量的关键。企业专利申请策略包括:充分论证专利申请的必要性、认真研究专利申请的可行性、慎重选择申请专利的类型、恰当把握专利申请的时机、仔细斟酌申请专利的国别和方式、认真撰写专利申请文件等。     

区域工业旅游产品营销策略——以郴州市工业旅游为例

以郴州市为例,论证了区域工业旅游产品营销应具备的三个条件:主体条件、客体条件、媒介条件;分析了当前我国区域工业旅游产品营销特点;在此基础上提出了战略对策:充分发挥政府在工业旅游产品营销中的主导作用、明确工业旅游产品营销市场的战略定位、实施产品组合营销策略、以“装”引人,推出特色产品、营造令人愉悦的旅游氛围,加大宣传推销力度、确定合理价格水平、重视工业旅游经济效益增长点———工业旅游商品的营销。     

The economic analysis of social customs: the case of pre-marital sex

This paper uses a sample of 18,876 adults aged 16-59 from to estimate logit equations of the determinants of support for the custom of abstaining from pre-marital sex. Three sets of equations are estimated separately for males and females; one set for disapproval of pre-marital sex, one set for disapproval of one night stands and another set for a proxy for involvement in pre-marital sex. These results confirm some expected male-female differences and also show a polarisation amongst the population in their support for, and observance of, customs and practices related to abstaining from sex before marriage.