大一学生上网情况的调查与思考

以某高校大一学生为样本,通过实际的问卷调查,在掌握了第一手材料的基础上,对大一学生上网的基本情况进行了整理分析。指出大学生网上行为是否健康直接影响其成长,抓好对大学生网民的教育已经刻不容缓,而大一阶段是规范大学生网上行为的最佳时机。加强高校的网络阵地建设,使大学生树立起正确的网络伦理观和网络文化观,才能使互联网这一高科技手段在大学教育中发挥积极的作用。     

Automobile demand,model cycle and age effects

This paper is aimed at exploring the existence of typical patterns of automobile model life and the formal test for age effects in a discrete-choice demand framework estimated with data on the models sold in the Spanish market. Estimates show that the evolution of market shares entails and quantifies age effects resulting from consumer demand. These effects are clearly distinguishable from the impacts generated by changes in attributes and firm pricing. They carry an exogenous factor that is full of implications for firm behaviour over the life of a model: the modification of demand price sensitivities. As a result, for example, equilibrium own-price elasticities are observed to decrease until the fourth year of a model life, and then to increase again.      

Regional business cycle synchronization in Europe?

We analyse regional business cycle synchronization in the Euro Area, using gross value added in 53 NUTS 1 regions for a period of 30 years (1975–2005), detrended by Hodrick–Prescott and the Christiano–Fitzgerald filters. We conclude that, on average, synchronization has increased for the period considered with exceptions during the eighties and the beginning of the nineties. Still, the correlation of the business cycle in some regions with the benchmark remained low or even decreased. Our findings also support the hypothesis of the existence of a ‘national border’ effect.     

BRICS: How important is the exchange rate pass-through?

This paper analyses the exchange rate pass-through (ERPT) into domestic consumer prices in BRICS (Brazil, Russia, India, China and South Africa) countries from mid-1990s onwards by using three different econometric approaches (i.e., the single equation approach, the VAR approach and the time-varying parameter approach). It is also studied the role of macroeconomic determinants in ERPT. Our results suggest that (a) ERPT is higher for the emerging markets with mostly floating exchange rates (Brazil, Russia and South Africa) than for the other BRICS countries; (b) exchange rate explains, on average, around the 40% of the price variance for Brazil, Russia and South Africa; and (c) inflation volatility, exchange rate volatility and openness seem to be the key macroeconomic determinants in BRICS countries.     

A cost efficiency analysis of the insurance industry in Mexico

In Mexico, the low participation of insurance activity in national production, in contrast to similar Latin American economies, is a concern. Industry’s regulator promoted more intense competition at the dawn of the century. Was deregulation followed by improvements in the financial and economic performance of Mexican insurance firms? The purpose of this paper is to answer this question through a comprehensive analysis of cost variations in an intertemporal manner, by breaking them down into the economic sources that produce them, including productivity. Cost frontier estimation was grounded in a joint production technology of desirable and undesirable outputs, modeled in an input-oriented fashion. Our results demonstrate that even though some companies achieved cost reductions from technological progress or improvements in efficiency, the Mexican insurance market does not show signs of significant productivity gains.     

Anti-consumption beyond boundaries: From niche topic to global phenomena

The first anti-consumption special issue was published by Psychology & Marketing in 2002. More than a decade later, in 2018, the International Center for Anti-consumption Research held its seventh Symposium at the University of Almeria, Spain. This gathering was accompanied by an open call-for-papers in Psychology & Marketing to create a much-anticipated follow-up special issue. Many papers were received for both the symposium and official call. This editorial introduces the final 10 papers that comprise the Psychology & Marketing 2020 special issue on anti-consumption. While the area of anti-consumption has mushroomed into a vast array of work since 2002, this editorial provides four major themes that help to frame the contributions of the 10 new papers as well as set the scene for future work in anti-consumption. The four themes are: Conceptual clarity and refinement; ideological perspectives; environmental and sustainability focus; and novel outlooks on anti-consumption.     

Management sub-advising in the mutual fund industry

This is a study of how contractual mechanisms can mitigate agency conflicts in sub-advised mutual funds. Sub-advising contracts allow fund families to expand their product offerings to include new investment styles and thereby gain market share. We show that costly contractual arrangements, such as co-branding, multi-advising, and performance-based compensation, can mitigate agency conflicts in outsourcing and protect investors from potential underperformance. Fund families will find it cost-effective to implement such incentive mechanisms only when investors are sophisticated in assessing manager skill. The findings help to explain why a large percentage of fund families outsource their funds to advisory firms.     

EMU and trade: A PPML re-assessment with intra-national trade flows

This paper examines the EMU effect on trade for the eleven early joiners and Greece relying for the first time on data that include both international and intra-national trade flows, in line with all the microfoundations of the structural gravity model of trade. We find that the overall EMU impact on trade is positive between its members and, specially, for trade between members and non-members. Interestingly, we further show that the effect of the EMU on bilateral trade remarkably differs across countries. For Ireland, Belgium–Luxembourg, Spain, Portugal and Austria, we find robust evidence that EMU has boosted trade both with other members and with third countries, while for Finland, France, Germany, Italy and the Netherlands, the results suggest that only trade with third countries has been enhanced by the EMU. Greece is the only country that shows a negative impact in trade with other EMU members and no effect in trade with non-members. Finally, the results across countries according to the direction of the trade flows (exports versus imports) do not show significant differences in any case.     

Uninsured idiosyncratic risk, liquidity constraints and aggregate fluctuations

Summary. I study the role played by uninsured idiosyncratic risk and liquidity constraints in the propagation of aggregate fluctuations. To this purpose, I compare the aggregate fluctuations of two model economies that differ in their insurance technologies only. In one of these model economies liquidity constrained households vary their holdings of a nominally denominated asset in order to buffer an uninsured idiosyncratic shock to their individual production opportunities. In the other economy every idiosyncratic component of risk can be costlessly insured. I find that the limited insurance technology implies fluctuations in output that are 20% larger, fluctuations in hours relative to output that are 9% larger, fluctuations in consumption relative to output that are 18% smaller, and a correlation of hours and productivity that is 15% smaller than those that obtain under the full insurance technology. Received: March 6, 1996; revised version August 15, 1996