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51.
The lion's share of retail traffic through search engines originates from organic (natural) rather than sponsored (paid) links. We use a dataset constructed from over 12,000 search terms and 2 million users to identify drivers of the organic clicks that the top 759 retailers received from search engines in August 2012. Our results are potentially important for search engine optimization (SEO). We find that a retailer's investments in factors such as the quality and brand awareness of its site increases organic clicks through both a direct and an indirect effect. The direct effect stems purely from consumer behavior: The higher the quality of an online retailer, the greater the number of consumers who click its link rather than a competitor in the list of organic results. The indirect effect stems from our finding that search engines tend to place higher quality sites in better positions, which results in additional clicks because consumers tend to click links in more favorable positions. We also find that consumers who are older, wealthier, conduct searches from work, use fewer words, or include a brand name product in their search are more likely to click a retailer's organic link following a product search. Finally, the quality of a retailer's site appears to be especially important in attracting organic traffic from individuals with higher incomes. The beneficial direct and indirect effects of an online retailer's brand equity on organic clicks, coupled with the spillover effects on traffic through other online and traditional channels, leads us to conclude that investments in the quality and brand awareness of a site should be included as part of an SEO strategy.  相似文献   
52.
53.
Enhancing airport runway safety is a difficult problem because runway accidents are rare events. Nonetheless, investments are being directed at improving safety for US airport ground traffic control systems. This paper shows that under these circumstances it is difficult to assess and measure the added safety offered by new replacement systems. We develop a framework for introducing and sequencing system improvements to provide greater assurances in enhancing safety. This framework shows how a new method can first be introduced as a secondary system, to test and verify its efficacy prior to its adoption as a primary system.  相似文献   
54.
Economies with oligopolistic markets are prone to inefficient sunspot fluctuations triggered by autonomous changes in firms equilibrium conjectures. A well‐designed taxation‐subsidization scheme can eliminate these fluctuations by coordinating firms in each sector on a single equilibrium, left unaffected. The optimal taxation scheme must select the number of active firms that makes the best trade‐off (in terms of consumer welfare) between the markup and the scale inefficiency distortions. Implementing such stabilization policy leads to significant welfare gains, attributable to an “efficient stabilization effect,” typically ignored in usual computations of the welfare costs of fluctuations.  相似文献   
55.
Training professionals for the new 21st century requires universities to make major changes in their conception of teaching, which, through the active, committed participation of teachers and students, will lead to the building and developing of the competencies needed by students for them to perform efficiently, ethically and with social commitment in their future jobs. The participation of teachers and students and their commitment to quality in the teacher training process are essential elements in the search for alternative ways to enhance university teaching. This article discusses the teacher training experiences had by the author in the ICE of Madrid Polytechnic University with the inclusion of data from a study undertaken on the Environmental Sciences course of this university where teachers, students and postgraduates’ perception of the quality of their vocational training at university is an important starting point for the design of strategies aimed at enhancing the quality of teaching.  相似文献   
56.
Abstract

Background: Private health insurance (PHI) represents the largest source of insurance for Americans. Hispanic Americans have one of the lowest rates of PHI coverage. The largest group in the US Hispanic population are Mexican Americans; they account for about two in every three Hispanics. One in every three Mexican Americans aged 64 years and under did not have health insurance coverage. Mexican Americans have the most unfavorable health insurance coverage of any population group in the nation.

Objectives: The objective is to determine the factors associated with the gap in PHI coverage between Mexican American and non-Hispanic American men.

Methods: This study used the National Health Interview Surveys (2010–2013) as the sample. A non-linear Oaxaca-Blinder decomposition was run, estimating the explained and unexplained gap in PHI coverage between the groups. Several robustness tests of the model were also included.

Results: This study estimates that 44.4% of employed Mexican American men are covered by PHI compared to 79.5% of non-Hispanic American men. Nearly 60% of employed Mexican American men were found to be foreign born, 35% have an educational attainment less than a high school degree, and 40% are likely to have language barriers. Decomposition results show that income, low educational attainment, being foreign-born, and language barriers diminished the probability of private health insurance coverage for Mexican Americans, and that 10% of the gap is unexplained.

Conclusions: Most of the difference in the PHI rate between Mexican American men and non-Hispanic men is explained by observable differences in group characteristics: education, language, and immigration status. About 10% of the difference can be attributed to discrimination under the traditional interpretation of an Oaxaca-Blinder decomposition. The PHI rate gap is large and persistent for Mexican American men.  相似文献   
57.
As the economies of the Association of Southeast Asian Nations (ASEAN) have moved towards closer economic ties and trade integration in recent years, the establishment of exchange rate stability is becoming an important regional policy concern, particularly in the wake of the Asian currency crisis of 1997. This paper examines the exchange rate volatility of the currencies of Indonesia, Malaysia, Philippines, Singapore and Thailand between 1974 and 1999. Using variance decomposition (VDC) methods and impulse response functions, which are VAR-related estimation techniques, the study also investigates the regional currency linkages which may have played a role in transmitting exchange rate fluctuations. The results indicate that, in spite of the adoption of the crawling peg exchange regime following the breakup of the Bretton Woods system, all of the five ASEAN currencies experienced volatility, with the Indonesian rupiah posting the highest volatility level. The switch to de facto pegging against the US dollar in the mid-1980s helped to stabilize all ASEAN currencies with the exception of the Malaysian ringgit. Each of the five currencies became more susceptible to instabilities in other ASEAN currencies in the post-1985 period. Consistent with the experience of the Asian currency crisis, the Thai baht was the main channel through which regional currency fluctuations were transmitted.  相似文献   
58.
This article presents cost effective guidelines to assist hotels of all sizes with the usage of electronic data interchange (EDI) in the Internet e-business era. The evolution of web-based EDI makes it easier for hotels of all sizes to support their business processes with traditional EDI technology, but without the extensive capital outlay in computer hardware and software. This is an attempt to encourage investment in basic EDI technologies before implementing more sophisticated applications. The focus is to allow hotels of all sizes to improve their competitive advantage with successive EDI technological advances.  相似文献   
59.
In recent years, the growing importance in developed countries of the Social Economy sector and the contribution of social capital to regional economic development are being studied in depth. Linking these two fields of research, the aim of the present work is to analyse the social capital endowments of Social Economy firms in comparison to those in traditional profit-maximizing firms. To do so, a literature review will be firstly carried out to clarify both the concept of social capital and, more specifically, its relation with entrepreneurship and social enterprises. In the empirical section, the social capital endowments both of social firms (cooperatives and owned-worker enterprises) and traditional firms are compared using data from two surveys conducted in Andalusia, a lagged Spanish region with long tradition in the Social Economy sector. Results show that social capital endowments measured through cooperation agreements and company links with local suppliers and costumers are higher in cooperatives and worker-owned companies. Therefore, Andalusian authorities must continue with its support policy to these enterprises as a mean to reinforce the regional economic development.  相似文献   
60.
The objectives of this paper are two-fold. First, to elaborate a theoretical model that shows the characteristics of an entrepreneur of quality and the factors that influence them. Second, to apply the model to entrepreneurs in the province of Seville, one of the least developed areas in the European Union. The purpose is to show the importance of entrepreneurship for business success and, more importantly, in economic development. In summary, the model shows that entrepreneurs of quality possess an intrinsic motivation and, as consequence of this, they adopt some energizer behaviours, such as the capacity for innovation, ambition and co-operation with others. The model also takes into account factors that influence these characteristics, including the personal context of the entrepreneur, such as experience, education and family, and the global context, such as productive opportunities, socio-cultural factors and political-institutional factors. In the analysis of the entrepreneurs of Seville, the paper mainly focuses on the motivation and the energizer behaviours and their interdependence. The empirical findings indicate that the model is valid.  相似文献   
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