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1.
Parents and policy‐makers often wonder whether and how the choice of a tracked or mixed educational system affects the equality of opportunity. I answer this question by analyzing the influence of peers on future educational results. I define an equal opportunity policy as one that maximizes the average lifetime income of the worst‐off type of individuals in society (i.e., students from disadvantaged backgrounds). I find that tracking maximizes average lifetime income if the opportunity cost of college attendance is sufficiently high.  相似文献   
2.
The literature on knowledge diffusion shows that knowledge decays strongly with distance. In this paper we document that the probability that a product is added to a country's export basket is, on average, 65% larger if a neighboring country is a successful exporter of that same product. For existing products, growth of exports in a country is 1.5% higher per annum if it has a neighbor with comparative advantage in these products. While these results could be driven by a common third factor that escapes our controls, they align with our expectations of the localized character of knowledge diffusion.  相似文献   
3.
The paper examines a Lagrange Multiplier type test for the constancy of the parameter in general models with dependent data without imposing any artificial choice of the possible location of the break. In order to prove the asymptotic behaviour of the test, we extend a strong approximation result for partial sums of a sequence of random variables. We also present a Monte-Carlo experiment to examine the finite sample performance of the test and how it compares with tests which assume some knowledge of the possible location of the break.  相似文献   
4.
We examine a consistent test for the correct specification of a regression function with dependent data. The test is based on the supremum of the difference between the parametric and nonparametric estimates of the regression model. Rather surprisingly, the behaviour of the test depends on whether the regressors are deterministic or stochastic. In the former situation, the normalization constants necessary to obtain the limiting Gumbel distribution are data dependent and difficult to estimate, so it may be difficult to obtain valid critical values, whereas, in the latter, the asymptotic distribution may not be even known. Because of that, under very mild regularity conditions, we describe a bootstrap analogue for the test, showing its asymptotic validity and finite sample behaviour in a small Monte-Carlo experiment.  相似文献   
5.
The paper offers an analysis of empirical evidence on the equity impacts of operational Bus Rapid Transit (BRT) systems in the Global South. The focus is on vertical equity, i.e. whether BRT systems achieve progressive benefits for poorer segments of the population. Findings from Africa, Asia, and Latin America all suggest that BRT does offer significant benefits to low-income groups, in terms of travel time and cost savings, access enhancement, and safety and health benefits. However benefits are often skewed toward medium-income users and thus less progressive than they might be. Two primary reasons for this are insufficient spatial coverage and inappropriate fare policies. While many features of BRT potentially allow it to deliver pro-poor outcomes, such outcomes only materialize if BRT implementers pay specific and sustained attention to equity. The paper identifies key issues that need to be addressed to steer BRT implementation toward more socially sustainable outcomes—including better integration with other transit, paratransit, and nonmotorized transport services, and with the housing sector.  相似文献   
6.
Competitor pressure is one of the major reasons that a SME engages in environmentally friendly or damaging activities. Extant research has argued that environmental strengths and concerns have mirror opposite relationships with stakeholder antecedents as well as with performance outcomes. We suggest this argument does not reflect the reality. Building on stakeholder management and Red Queen theories, we hypothesize that environmental strengths and concerns have differential relationships with competitors–firm power exchange and financial performance for Chinese SMEs. Results of ten interviews, a pretest, and a large-scale field study indicate that competitors–firm power divergence has a positive relationship with environmental strengths, yet the link between this divergence and environmental concerns does not exist. Further, environmental strengths mediate the relationship between competitors–firm power divergence and financial performance of Chinese SMEs.  相似文献   
7.
Service markets are becoming global, open and competitive. Knowledge is more available, technology more complex and service life‐cycles are shortening. In order to satisfy this challenge, more innovation management tools are required to get better and more successful new or improved products and services. This paper analyzes the relationship between the use of innovation management tools (IMT) and the degree of development of innovation process through the application of a five phase innovation model (TEMAGUIDE). This is undertaken in a group of service organizations from three sectors: trade, healthcare and education. The sequence of the innovation process development is defined between activities and use of innovation tools. Results show that activities and practices are more developed than use of innovation management tools, and also show that leading innovation organizations have a higher use of IMT.  相似文献   
8.
Although tourism expenditure is determined by different factors, the literature has not analysed the extent to which trip cultural activities affect tourism expenditure in the destination. The focus of this paper is a microeconomic analysis performed in 14 emerging urban‐cultural destinations in Andalusia (Spain). The results confirm that there are activities related to cultural visits, attendance at events or gastronomic activities that determine tourism expenditure. These results guide the implementation of specific actions by the policy‐makers in these destinations aimed at increasing the economic impact of tourism, based on the creation of high value‐added tourism products to overcome their mere dependence on built heritage. Copyright © 2015 John Wiley & Sons, Ltd.  相似文献   
9.
Previous studies show how strategies based on the customer lifetime value (CLV) can lead to an increase of profitability for a firm. In this context, marketing serves the purpose of maximizing CLV and customer equity (the CLV of current and future customers). For most types of service firms, salespeople are direct participants in implementing the CLV concept. However, prior research does not answer the question of whether or how salesperson CLV orientation can enhance profits. Using data on salespeople in a large Chilean retail bank, this study shows that the effect of salesperson CLV orientation on salesperson performance follows an S-shaped function (which is first convex and then concave). Additionally, data does not support the idea that the optimum level of CLV orientation depends on salesperson customer orientation, salesperson adaptive selling behavior, or salesperson experience (i.e., CLV-oriented behaviors could be effective across a wide range of salespeople). As such, this study addresses an important concern among researchers and managers that is related to how to increase the salesperson performance. The findings of this study suggest that firms need to monitor individual salesperson CLV orientation more closely.  相似文献   
10.
The aim of this article is to analyse the internal mechanisms of corporate governance (board of directors and ownership structure), which influence voluntary disclosure of intangibles. The results appear to corroborate the view that an increase in institutional investor shareholding has a negative effect on voluntary disclosure, supporting the hypothesis of entrenchment, whereas an excessive ownership by institutional investors may have adverse effects on strategic disclosure decisions. The results also indicate that an increase in the number of members of the board to up to 15 has a beneficial effect on the disclosure of intangibles. However, as this number increases, the effect inverts and becomes adverse to improving the capacity for supervision and control in the decision-making process regarding the voluntary disclosure of intangibles. The findings endorse the recommendation of the most of the Corporate Governance Codes regarding an advisable maximum of 15 members on a board to ensure its effectiveness and internal cohesion.  相似文献   
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