规范违规“驴友”救助的法律思考——从违规穿越四姑娘山“驴友”救助说起

2011年国庆期间,一批登山者在攀登四川省四姑娘山景区过程中擅自变更攀登路线,从而被困山中,由于变更路线,救援队伍只能盲目搜救全面撒网再加上恶劣环境影响,耗费了大量救援资金。再加上近年来＂驴友＂户外登山遇险情况的频发,引起了社会关于救援费用承担以及救援机制的广泛讨论。本文从紧急救援以及民法的角度分别分析了救援费用是否该由责任人自身承担,并通过借鉴国外户外救援的经验结合我国实际情况提出了在我国构建规范的户外救援法律制度的一些设想。     

The Positive Effects of the Schengen Agreement on European Trade

Enacted in 1985, the Schengen Agreement is widely heralded as both a symbol and major institutional advancement of the European project. By eliminating passport requirements for workers, the compact ostensibly produces gains from travel, ease of market access and economies of scale. Yet despite these optimistic predictions, scholars know little about the actual effects of Schengen on trade. We fill this void by identifying why labour mobility should expand the cross‐country exchange of goods and services and then test our theory with data from Europe spanning the period 1980 to 2011. We argue that labour mobility resulting from Schengen yields positive effects on trade by increasing demand for foreign goods, improving awareness of low‐cost producers abroad and lowering the risks associated with buying and selling outside the country. Using the gravity model of trade, we show empirically that Schengen membership makes European states more robust trading partners.     

Exploring word‐of‐mouth influences on travel decisions: friends and relatives vs. other travellers

Travel research consistently shows the importance of word‐of‐mouth (WOM) information sources in the travel decision‐making process. Friends and relatives have been identified as organic image‐formation agents, and it has been emphasized that this WOM information is one of the most relied‐upon sources of information for destination selection. While there has been recognition of the importance of WOM information sources on consumer behaviour in tourism, little has been performed to understand more specifically how and what behaviour is influenced. This study examined the differing influences of friends and relatives vs. other travellers on the travel choices and behaviours of 412 visitors to the North Queensland Region in Australia. More specifically, the present study compared the following four groups of respondents: those who indicated that they obtained travel information from friends/relatives and other travellers (n = 70); those who obtained information from friends/relatives only (n = 121); those who obtained information from other travellers only (n = 105); and those who obtained information from neither (i.e. no WOM) (n = 116). The results indicated that there were significant differences across the four groups with respect to demographic characteristics, other information sources used, accommodation and transportation used, and travel activities in the destination. However, the groups did not differ in their image of the destination.     

Pragmatic Sustainability: Translating Environmental Ethics into Competitive Advantage

A travel management programme allows an organisation to manage corporate travel expenditure, and through a well-formulated travel policy, to control its travel expenses. However, traveller non-compliance of the travel policy is an increasing area of concern with surveys conducted amongst travellers showing various reasons for non-compliance, both deliberate and unknowing. The purpose of this article is to look beyond the reasons and identify the underlying factors that influence travel policy compliance. Two broad categories of factors that lead to non-compliance are distinguished: those related to the corporate travel policy as formulated and communicated by the organisation, referred to as corporate-related factors and including issues of corporate culture and business ethics; and those related to the person of the corporate traveller, referred as personal-related factors and including issues of personal ethics. This article makes a first attempt at identifying factors that have not previously been recognised in those industry or academic studies done on non-compliance or violation of the corporate travel policy.     

Developing countries in competition for foreign investment

This study analyzes the competition for foreign direct investment (FDI) among countries at different stages of development. It is assumed that domestic companies in a more-developed country use more capital in production and that wages in a less-developed country are lower. Countries can compete for FDI by increasing the supply of public inputs in the economy, in addition to (or instead of) offering subsidies or tax reliefs to foreign investors. The results reveal that if governments of competing countries are not allowed to discriminate between domestic and foreign firms, there may be situations in which a less-developed economy will attract FDI depending on the labor cost differential and the responsiveness of foreign investor's and domestic companies' output to changes in the supply of public inputs. If tax discrimination between domestic and foreign firms is permitted, both countries will optimally raise the supply of public inputs, but the more-developed country will always win the foreign investment despite higher labor costs. Thus, governments of less-developed countries may have an incentive to work on an international agreement to disallow tax discrimination.     

Exporters and Importers of Services: Firm‐Level Evidence on Italy

This work contributes to the growing literature on international trade in services at firm level. Our data set provides information on exports and imports of services (excluding transportation and travel) in 2008–09 for almost 3,000 Italian industrial and services firms, divided by partner country and type of service. We report a set of stylised facts on services trade and analyse the choice between export and foreign direct investment in services at the firm level. We find that the export and import of services are highly concentrated in just a few firms. Firm‐level variation in trade is positively correlated with firm size and productivity. Country‐level variation is to a large extent explained by the standard gravity variables: distance strongly reduces trade in services in spite of their intangibility. Smaller and less productive firms choose to export rather than sell through foreign affiliates, although there is some heterogeneity among service types.     

Exports in the strategy of multinational enterprises

Using data from a sample of 329 multinational firms, this paper analyses the impact of increases in foreign production on exports from the parent firm. The relationship between internal exports and foreign production is positive at all feasible levels of foreign production, although the impact on extra-group exports may be negative. These effects may be swamped by changes in relative international competitiveness between firms of the same nationality and industry group. The importance of these findings for multinational firms is that anticipation of these effects can reduce costs of reallocation of resources for the parent, firm and the results illustrate the wide remaining scope for further internationalization even among the world's largest firms. The impact of foreign production on home country employment is likely to remain positive so long as the firm's international competiveness can be improved.     

Pattern of road traffic injuries in Ghana: Implications for control

Road traffic injuries and fatalities are increasing in Ghana. Police-collected crash and injury data for the period 1994-1998 were aggregated and analyzed using the MAAP5 accident analysis package developed by the Transport Research Laboratory, U.K. Published results of recent transport-related epidemiological and other surveys provided an additional data source. According to the 1994-1998 police data, road traffic crashes were a leading cause of death and injuries in Ghana. The other leading causes of death and injuries are occupational injuries which involve nonmechanized farming and tribal conflicts. The majority of road traffic fatalities (61.2%) and injuries (52.3%) occurred on roads in rural areas. About 58% more people died on roads in the rural areas than in urban areas, and generally more severe crashes occurred on rural roads compared with urban areas. Pedestrians accounted for 46.2% of all road traffic fatalities. The majority of these (66.8%) occurred in urban areas. The second leading population of road users affected was riders in passenger-ferrying buses, minibuses and trucks. The majority of these (42.8%) were killed on roads that pass through rural areas. Pedestrian casualties were overrepresented (nearly 90%) in five regions located in the southern half of the country. Efforts to tackle pedestrian safety should focus on the five regions of the country where most pedestrian fatalities occur in urban areas. Policies are also needed to protect passengers in commercially operated passenger-ferrying buses, minibuses and trucks because these vehicles carry a higher risk of being involved in fatal crashes.     

国际贸易结算货币理论及其对我国的启示

随着多边贸易和国际货币多元化的不断发展,国际贸易结算货币的选择对降低汇率风险和交易成本,提高经济效益显得越来越重要。本文按三个发展阶段对国际贸易结算货币理论进行了述评,在此基础上探讨了目前我国对外贸易结算货币的选择及人民币作为国际贸易结算货币的可能性。认为,当前美元仍应是我国对外贸易首选结算货币,但我国应积极扩大人民币在边境贸易中的计价结算,并努力创造条件促使人民币在远洋贸易中计价结算,以降低国际贸易的汇率风险及促进人民币国际化的发展。     

Foreign portfolio investors before and during a crisis

Using a unique data set, we study the trading behavior of foreign portfolio investors in Korea before and during the currency crisis. The central message is that investors in different categories have different trading patterns. For example, foreign investors outside Korea are more likely to engage in positive feedback trading strategies and are more likely to engage in herding than the branches/subsidiaries of foreign institutions in Korea or foreign individuals living in Korea. This difference in trading behavior is possibly related to the difference in their information. This paper suggests that it may be worth exploring policies that can encourage foreign investors to acquire more information (e.g. by setting up a branch or a subsidiary in the emerging country).     

Neck injuries among the elderly in Sweden

Neck injuries are some of the most important injuries as they have the potential to influence the spinal cord. A previous national survey of neck injuries in Sweden revealed that injury incidence was increasing for the population over 65 years of age, although it was decreasing for the population as a whole. The aim of this study was therefore to further clarify the magnitude, severity, and external causes of neck injuries in the elderly people in Sweden. A national incidence study, with focus on the age group above 65 years, was undertaken with data from the injury surveillance program at the Swedish National Board of Health and Welfare. The investigation includes cervical vertebral fractures reported between 1987 and 1999, and cervical soft tissue injuries from 1997 to 1999. Data in the hospital discharge register were reported in ICD9 from 1987 to 1996, while data from 1997 to 1999 were reported in ICD10. During the study period 4168 cervical injuries occurred of which 341 were fatal. People above 65 years of age made up 17% of the population and sustained 30% of all cervical injuries and 43% of all fatal cervical injuries. Half of the cervical injuries were axis (C2) fractures. Lower vertebral fractures occurred in 16% of the cases and atlas (C1) fractures in 11%. The cervical soft tissue injuries amount to 19% of all injuries. Fall accidents account for the majority (71%) of the accidents. There is an increasing trend for fall accidents resulting in neck injuries. The male population has a higher incidence for neck fractures than females, disregarding the external cause of injury. The upper cervical injuries are the most common, have the longest hospital treatments, and seem to be caused mainly by low energy falls. Further research is needed to understand the mechanisms of these injuries and in this aspect engineering could contribute with valuable knowledge, through accident simulations with numerical models. The increasing incidence of fall injuries calls for further preventive actions. The public sector should implement preventive strategies to reduce the number of extrinsic accidents, while the health care sector should focus on preventing intrinsic accidents with individual actions for each patient.     

Risk factors at the travel destination: their impact on air travel satisfaction and repurchase intention

The purpose of this study is to investigate the impact of four travel risk factors (natural disaster risk, physical risk, political risk, and performance risk) on traveler groups with different characteristics and the relationship among these risk factors, travel satisfaction, and travelers’ repurchase intention. For the research purpose, this study analyzed the data from passengers of a major international airline. The results suggest that traveler groups with different characteristics (gender, airline seat class, travel purpose, travel destination, travel duration, travel companion, and income level) respond differently to some risk factors, while they show the same response to other risk factors. The results also show that each risk factor affects travel satisfaction and repurchase intention differently. These findings imply that airlines should develop different strategies based on risk factors and travelers’ characteristics.     

Buyer-seller relationships in international trade: Evidence from U.S. States' exports and business-class travel

International trade has become increasingly dependent on the transmission of complex information, often realized via face-to-face communication. This paper provides novel evidence for the importance of in-person business meetings in international trade. Interactions among trade partners entail a fixed cost of trade, but at the same time they generate relationship capital, which adds bilateral specific value to the traded products. Differences in the face-to-face communication intensity of traded goods, bilateral travel costs and foreign market size determine the optimal amount of interaction between trade partners. Using U.S. state level data on international business-class air travel as a measure of in-person business meetings, I find robust evidence that the demand for business-class air travel is directly related to volume and composition of exports in differentiated products. I also find that trade flows in R&D intensive manufactures and goods facing contractual frictions are most dependent on face-to-face meetings. The econometric identification exploits the cross-state variation in bilateral exports and business-class air travelers by foreign country and time period, circumventing any spurious correlation induced by cross-country differences driving aggregate travel and trade patterns.     

Endogenous market structures and the gains from foreign direct investment

This paper discusses the gains from liberalizing foreign direct investment (FDI) in a two-country setting with endogenous market structure. We investigate two different scenarios. In the first scenario, headquarters costs are large in the foreign country so that the industry is located in the domestic country only. In this case, multinational and national firms may coexist and market concentration may make FDI welfare improving for the foreign country and welfare reducing for the domestic country. In the second scenario, headquarters costs are symmetric and firms will be located in both countries. Here, profitable FDI activities lead to mutual welfare gains, irrespective of market structure effects.     

Understanding travel expenditure by means of market segmentation

Consolidated tourism destinations should expand their market share by focusing on tourism spending instead of number of travellers. This strategy emphasises satisfying the preferences and needs of tourists more dynamically in terms of their expenditure patterns. The purpose of this paper consists of evaluating the usefulness of an expenditure-based segmentation as a relevant instrument of tourism policy in order to increase the economic benefits from travellers to Andalusia. More specifically, by means of decision trees and linear regression statistical techniques, heavy spenders are identified as well as exploring which variables might be considered as the best predictors of travel expenditure. Finally, the implications of the results are discussed, as they may provide practical guidance for tourism practitioners at similar destinations.     

论我国的出口平台型外商直接投资

除了水平型投资和垂直型投资以外,出口平台型直接投资成为了近期研究的热点。本文使用1980-2004年间我国对外经济贸易和外资企业出口数据,说明:20世纪90年代中期以前,各国在华直接投资动机存在明显差异;但20世纪90年代中期以后,各国投资动机趋同,我国大陆地区成为了香港地区、日本和美国这三个主要投资来源地的出口平台。但是与新加坡和爱尔兰这两个世界上主要的出口平台型国家相比,外资企业还没有成为我国经济的支柱,我国并不属于出口平台型国家。     

A hybrid clustering and classification approach for predicting crash injury severity on rural roads

As a threat for transportation system, traffic crashes have a wide range of social consequences for governments. Traffic crashes are increasing in developing countries and Iran as a developing country is not immune from this risk. There are several researches in the literature to predict traffic crash severity based on artificial neural networks (ANNs), support vector machines and decision trees. This paper attempts to investigate the crash injury severity of rural roads by using a hybrid clustering and classification approach to compare the performance of classification algorithms before and after applying the clustering. In this paper, a novel rule-based genetic algorithm (GA) is proposed to predict crash injury severity, which is evaluated by performance criteria in comparison with classification algorithms like ANN. The results obtained from analysis of 13,673 crashes (5600 property damage, 778 fatal crashes, 4690 slight injuries and 2605 severe injuries) on rural roads in Tehran Province of Iran during 2011–2013 revealed that the proposed GA method outperforms other classification algorithms based on classification metrics like precision (86%), recall (88%) and accuracy (87%). Moreover, the proposed GA method has the highest level of interpretation, is easy to understand and provides feedback to analysts.     

The Location Choices of Foreign Investors: A District‐level Analysis in India

This paper analyses the determinants of the location choices made by foreign investors at the district level in India to gauge the relative importance of economic geography factors, local business conditions, institutional conditions and the presence of previous foreign investors. We employ a discrete‐choice model and Poisson regressions to control for the potential violation of the assumption of independence of irrelevant alternatives. Our sample includes about 19,500 foreign investment projects approved in 447 districts from 1991 to 2005. We find that foreign investors strongly prefer locations where other foreign investors are. This effect is significantly positive and robust across different years, sectors and different types of foreign direct investment (FDI). Moreover, path dependence remains significantly positive when controlling for institutional conditions at the state and district level. Foreign investors tend to follow not only previous investors from the same country of origin but also investors from other countries of origin. They are also attracted to industrially diverse locations and to districts with better infrastructure and institutional conditions, although these findings are less robust. Surprisingly, districts in the neighbourhood of large metro areas do not benefit, in terms of attracting more FDI, from having easier access to these markets than remote Indian districts. On the contrary, our results suggest that large metro areas divert FDI projects away from neighbouring districts, thereby perpetuating or even widening the urban–rural divide. We conclude that the concentration of FDI in a few locations could fuel regional divergence in post‐reform India.     

Is FTA/EPA effective for a developing country to attract FDI? The knowledge‐capital model revisited

To prepare an answer to the question of how a developing country can attract foreign direct investment (FDI), this paper explored the factors and policies that may help bring FDI into a developing country by utilising an extended version of the knowledge‐capital model. With a special focus on the effects of a free trade agreement (FTA) or an economic partnership agreement (EPA) between a pair of market and non‐market countries, simulations with the model revealed the following: (i) although FTA/EPA generally tends to increase FDI to a developing country, the possibility of improving welfare through increased demand for skilled and unskilled labour decreases as the size of the country grows; (ii) a developing country may suffer severe welfare losses through FTA/EPA if the availability of skilled labour is extremely limited; and (iii) a developing country can enhance welfare gains from a FTA, and it is even possible to recover the welfare effects from negative to positive, by making the arrangement an EPA.