Multiple job holding as a strategy for skills development

This study investigated the training effect of multiple job holding on the activity of main jobs. First, we developed a dual-labor supply model by adding the training effect of working second jobs. The theory showed that workers with unconstrained hours hold second jobs when they develop skills via the experience of second jobs. To verify the hypotheses from the theoretical model, the causal relationship between holding a second job and the wage rate of a main job was estimated using the Keio Household Panel Survey. Difference generalized method of moments was adopted to remove time-invariant individual effects and endogenous bias. Moreover, the estimations showed heterogeneity of main jobs in terms of length of working hours, tasks, and job turnover. Full-time workers engaged in intelligent tasks and those who did not change their jobs secured training effects from second jobs but only when the comparison group was the workers allowed to hold second jobs by their employers. It was presumed that employers paid to restrict employees’ activities. On the contrary, part-time workers engaged in physical tasks were exhausted by second jobs, which decreased the wage rate of their main jobs.     

RFID在库存管理中应用的研究综述

从运作业务、基础服务、管理决策三个方面详细综述了目前RFID在库存管理中应用的进展,并且对RFID在实施中存在的问题和未来的发展趋势进行了总结和展望。     

基于新增费用分担的交货期决策模型

在回顾下游控制交货期决策权并完全承担缩短交货期费用的决策模型的基础上,研究基于上游先公布交货时间下游再决定订货批量的订货过程,并建立缩短交货期的费用按一定比例由上下游分担条件下的供应商的交货期决策模型,同时提出了供应商基于费用分担的交货策略。并通过算例进行了分析与证实。     

Fertility, female labor force participation, and the demographic dividend

We estimate the effect of fertility on female labor force participation in a panel of countries using abortion legislation as an instrument for fertility. We find that removing legal restrictions on abortion significantly reduces fertility and estimate that, on average, a birth reduces a woman’s labor supply by almost 2 years during her reproductive life. Our results imply that behavioral change, in the form of increased female labor supply, contributes significantly to economic growth during the demographic transition when fertility declines.      

Aging, Asset Markets, and Asset Returns: A View From Europe to Asia

The extent of the demographic changes is dramatic especially in some Asian and European countries. This paper investigates the effect of aging on global asset markets and asset returns, focusing on markets for productive capital, and especially on interactions between European and Asian economic development. Aging has complex effects on the markets for real capital. If elderly people save less than younger people, interest rates will increase. At the same time, however, the younger generation becomes smaller, which reduces the demand for new investment. The equilibrium effect is thus uncertain. Our multicountry computational equilibrium model delivers a subtle picture: there will be some decline in the return from productive capital, but it is relatively small. We find noticeable interaction effects between labor market and pension reforms in Europe on the one hand, and the demographic and economic developments in Asia, especially India and China, on the other hand.     

基于安全的食品供应链管理

建立基于食品安全为首要目标的食品供应链管理十分必要。为此,应构建应对食品安全事故快速反映的信息共享平台,在供应链内部建立统一的产品质量标准,提高食品供应链上企业的集约化程度,实施标识管理和可追溯制度,确保食品安全。     

关于旅游供应链研究中几个问题的思考——兼与路科同志商榷

旅游供应链的研究在国内是一个较新的领域和课题,诸多学者在这方面已经作了许多积极和有意义的研究,本文试对当前旅游供应链研究中的供应链模式、旅行社在供应链上的定位等问题作初步探讨,同时就有关问题与路科同志商榷.     

Towards a geography of tourism

This paper traces the development of geographical interest in tourism during the past half century and examines the range and scope of the geography of tourism. The available literature is reviewed and suggestions are made regarding possible research aveneus and theoretical developments. Six major areas of interest are identified: spatial aspects of supply, spatial aspects of demand, the geography of resorts, patterns of movements and flows, the impact of tourism, and models of tourist space. Through an emphasis on spatial interaction an attempt is made to provide some cohesion and synthesis for this body of knowledge which constitutes the basis of the geography of tourism.     

Restaurant's decision to purchase local foods: Influence of value chain activities

In this paper we investigate how restaurant managements’ attitudes and behaviors influence decisions to purchase local foods as inputs to their products. An enhanced investigation of chefs’ and managers’ decision-making criteria could improve understanding of local food systems linkages with the restaurant industry. We apply a value chain framework to investigate activities that influence restaurants’ decision to purchase local foods. Results indicate that attitudes and behaviors associated with sourcing and product characteristics play an important role in local food purchase decisions in the restaurant value chain. Order processing time and uniqueness of products are the most significant reasons in restaurant managements’ decisions to purchase local foods. The implications of these findings for restaurants and producers are discussed. Our study contributes to the literature by expanding upon the criteria used by restaurants to make local food purchasing decisions.     

国外关于旅游地水供需矛盾的研究

旅游业是地表水和地下水的主要使用者之一。随着旅游业的不断发展，对水资源的影响日益凸现，水供需矛盾已成为全球旅游可持续发展的主要制约因素之一。本文在阐述国外水供需矛盾旅游地主要区域特征的基础上．从系统角度深入分析了国外旅游地水供需矛盾及其主要影响因素，并从管理、技术、经济和教育等方面总结了国外水供需矛盾的主要调控措施与实施情况．以期丰富旅游水环境的研究视角，为我国旅游地水供需管理提供帮助。