1961～2013年塔城地区气候的时空变化特征

[目的]探究塔城地区气候的时空变化趋势及其与气象因子的关系.[方法]文章利用塔城地区7个气象站点1961~2013年的逐日气象资料,探究了气温、降水、日照时数、积温和潜在蒸散量的时空变化特征.[结果]1961~2013年塔城地区年平均气温、降水量和积温呈增加趋势,日照时数和潜在蒸散量呈减少趋势.1961~2013年塔城地区平均气温、降水量、日照时数、年潜在蒸散量、积温分别在1997、1967、1996、1989、1985年发生增加突变.平均气温、降水量、日照时数、积温存在明显的多尺度周期特征,即30年的大周期和15年的小周期变化.塔城地区平均气温的空间分布差异明显;大致呈现西高东低的空间分布特征;降雨量空间分布大致呈现西多东少的经线分布特征;日照时数大致呈现南短北长的维度地带性特征;潜在蒸散量存在自南向北逐渐减少的空间分布特征;积温的空间分布呈明显的自南向北逐渐减少的维度地带性特征.[结论]在全球气候变化下,较全面了解到新疆塔城地区气候变化趋势特征,对建立塔城地区气象预测与农业生产之间的预警,促进农业健康发展有很大的理论依据.     

Constructing a mixed-logit model with market positioning to analyze the effects of new mode introduction

This study aims to investigate how the introduction of high-speed rail (HSR) influences traveler choice behavior and the market structure in the western corridor of Taiwan. A new mixed-logit model with factor decomposition is constructed to analyze the market positioning of the existing modes and HSR; the data is collected using the stated preference method. The empirical results show that travel cost is the major factor in market positioning. After the introduction of HSR, travelers’ mode preference did not change, whereas locations across modes on the market-positioning map as well as some coefficients of the explanatory variables changed.     

Financial repression and external openness in an endogenous growth model

An endogenous growth model has been developed that extends Sidrauski (1967), Roubini and Sala-i-Martin (1992,1995) and Lucas (1988) by combining financial development, human capital investment, and external openness. Financial development and trade liberalization are shown to increase the economic growth rate by increasing the marginal benefits of human capital investment. Expansionary governments are, however, provided with an incentive to increase the money supply growth rate, to repress the financial sector, to close its economy, and to impose a high proportional income tax rate.     

International Trade and the Equilibrium Rate of Unemployment in a Heckscher-Ohlin World Economy

This paper develops a (stylized Asia-America) Heckscher-Ohlin world economy in which the equilibrium rate of unemployment is endogenous. We examine the impact of various economic shocks on unemployment in the global economy. Harrod-neutral or Hicks-neutral technical progress across all industries in Asia leads to a terms of trade improvement for America but raises America's unemployment rate. Introducing a third country such as the block of former socialist economies results in higher unemployment for both Asia and America. Protection in America lowers American equilibrium unemployment but raises Asia's unemployment. [E24]     

Intra‐firm differentiation of compensation systems: evidence from US high‐technology firms

While scholars have long recognised the influence of firm decisions on aspects of compensation (e.g. pay level and pay mix), prior compensation studies offer an ambiguous understanding regarding their scope. Some studies argue that firms customise compensation decisions according to employee groups, whereas others assume that firm compensation decisions apply uniformly throughout a firm. To address this research gap, the current study analyses pay levels and pay mixes for R&D employees and administrative employees in US high‐technology firms. Our empirical analyses show that firms make distinct compensation decisions for these two job families, but these decisions are ultimately consistent. These findings highlight firms' intention to strike a balance between customising compensation systems according to employee groups and maintaining internal consistency. Our findings add interesting insights to the strategic HRM and talent management literatures, which claim that firms should differentiate among employees when designing HRM systems.     

The effect of travel purpose and self-image congruency on preference toward airline livery design and perceived service quality

This paper examines travelers’ preference for airline livery design, which is an important component of sensory experience for tourists. Based on surveys of both U.S. and South Korean respondents, this study finds that airline livery preference depends on travel purpose (i.e. business vs. vacation). Designs preferred by the two travel segments differ in terms of color tone, hue, line, and shape. Business traveler-preferred designs signal punctual, efficient, classy, and safe service; while vacation traveler-preferred designs elicit feelings of fun, friendly, and exotic service. It is also shown that travelers prefer airline livery that is congruent with their situational self-image, depending on the travel occasion at hand. In fact, self-image congruency of design is approximately half of the variance in airline livery preference. Finally, results show that self-image congruency also increases perceived service quality.     

Moderating effect of capital intensity on the relationship between leverage and financial distress in the U.S. restaurant industry

During the recent and ongoing economic turmoil, countless businesses have been facing financial distress and many have filed for bankruptcy. This issue is especially critical for the restaurant industry due to restaurants’ sensitivity to economic fluctuations. Therefore, the purpose of this study is to examine the financial distress issue in the U.S. restaurant industry. In particular, the study examines a moderating effect of capital intensity on the relationship between a firm's leverage and degree of financial distress. The dataset includes publicly traded U.S. restaurant firms during the period 1990–2008. The study measures the degree of financial distress by modified Z-scores, and findings suggest a positive moderating effect of capital intensity on the relationship between leverage and financial distress.     

马克思理论视角下我国城市贫困及反贫困研究

20世纪90年代以来,中国城市贫困问题日益显现,已成为国家经济增长、社会稳定、家庭和个人全面发展的阻碍。依据马克思贫困理论的三个层面,从技术基础、表现形态和制度决定,分析转型期我国城市贫困的产生背景、社会构成和结构成因,提出了城市反贫困的途径,旨在为我国的城市贫困研究提供借鉴。     

Profiting from innovations: the role of new game strategies in the case of Lipitor of the US pharmaceutical industry

In exploring why innovators often do not profit from their innovations, researchers concentrate on innovators versus imitators and the extent to which owners of complementary assets capture profits from innovations. The literature provides scant attention to factors that sap profits from innovations. This paper argues that an innovator's positioning vis‐à‐vis customers, suppliers, complementors, and other co‐opetitors plays a critical role in the innovator's profitability. The article explores how an innovator can use new game strategies to better positioning, thus capturing rents from innovations and enabling further innovations in the future. The study examines the case of Lipitor, one of the world's best‐selling drug, to illustrate how positioning can play in a firm's ability to profit from its innovations.     

Twin dollarization and exchange rate policy

This paper develops a small open economy general equilibrium model with nominal rigidities to study twin dollarization in East Asian economies, a phenomenon where firms borrow in US dollars and also set export prices in US dollars. In this model, we endogenize both the currency of liability denomination and the currency of export pricing. We show that a key factor that affects firms' dollarization decisions is exchange rate policy. Twin dollarization is an optimal strategy for all firms when exchange rate flexibility is limited, which implies that a fixed exchange rate regime may lead to an equilibrium with twin dollarization. Furthermore, we find that twin dollarization can reduce the welfare loss caused by the fixed exchange rate regime, as it helps to cushion the economy against domestic nominal risk.