The objective of a privately owned firm under imperfect competition

This paper proposes a model of imperfect competition among privately owned firms that act in the best interest of their shareholders. The existence of a solution for the model is proved under weaker conditions than the ones generally used in the literature. In particular, the results did not require the existence of a continuous equilibrium price selection or concavity assumptions on the profit function.      

Macroeconomic effects of structural reforms and fiscal consolidations: Trade-offs and complementarities

This paper studies the impact of product and labour market structural reforms and the effects of their joint implementation with alternative debt consolidation strategies. The set-up is a dynamic general equilibrium model calibrated for the Greek economy. The results show that structural reforms produce important long-run GDP gains that materialize earlier, the faster the reforms are implemented. When implemented jointly with fiscal consolidations, structural reforms may amplify the short-run costs of fiscal tightening. The GDP dynamics depend on the fiscal instrument used for public debt consolidation. In the long run, however, there are complementarity gains irrespective of the fiscal instrument used.     

Volatility in the knowledge economy

Summary. We seek to explain the economic volatility of the last 6 years, in particular the rapid expansion and contraction of the knowledge sectors. Our hypothesis is that these sectors amplify the business cycle due to their increasing returns to scale, growing faster than others in an upswing and contracting faster in a downswing. To test this hypothesis we postulate a general equilibrium model with two sectors: one with increasing returns that are external to the firm and endogenously determined - the knowledge sector - and the other with constant returns to scale. We introduce a new measure of volatility of output, a real beta, and derive a resolving equation, from which we prove that the increasing return sectors exhibit more volatility then other sectors. We validate the main results on US macro economic data of real GDP by industry (2-3 digits SIC codes) of the 1977-2001 period, and provide policy conclusions.Received: 18 March 2002, Revised: 16 February 2004, JEL Classification Numbers: D5, D58, E10, L50, L52, O38, O51.Correspondence to: Graciela Chichilnisky     

人民币升值的宏观经济影响评价

本文通过建立中国可计算一般均衡模型定量研究了人民币升值对中国经济的影响。结果表明人民币升值对中国实际GDP增长的影响不是线性变化的,对进出口影响的模拟结果与直观判断一致;人民币升值对就业不利,但下降幅度也是随着升值幅度的上升而提高。升值对城乡居民消费的影响不同,会加大城乡差距。人民币升值对不同部门的影响不同,受冲击较大的是劳动密集型的制造业。我们的基本判断是,人民币的大幅度升值对中国经济整体不利,而小幅度的升值的影响甚微。因此,既要避免大幅度的升值,又可适当地扩大汇率的浮动范围,缓解人民币升值压力。     

General equilibrium modelling of the direct and indirect economic impacts of water quality improvements in the Netherlands at national and river basin scale

The main objective of the study presented in this paper is to estimate the direct and indirect economic impacts of water quality policy scenarios in the Netherlands focusing on the reduction of emission levels of nutrients and a number of eco-toxicological substances. For this purpose, an Applied General Equilibrium (AGE) model consisting of 27 production sectors is extended to water through the inclusion of substitution elasticities between labour, capital and emissions to water in the sectors' production functions. The macro-economic costs of a 10, 20 and 50% reduction of the emission levels in the year 2000 of ten priority substances in the EU Water Framework Directive vary between 0.2 and 9.4% of Net National Income (NNI). A large share of the total economic costs are borne by important sources of pollution like commercial shipping, the chemical and metal industry. However, important spin-off effects due to adaptation take place in the tertiary service sector. Besides the estimation of the economy-wide impacts of water quality improvements, the novelty of the study presented here is found in the downscaling of national and sector results to river basin level and the estimation of shadow prices for water-polluting substances through the introduction of an emission permits market.     

How road improvement reduces poverty: the case of Laos

A general equilibrium modeling approach is used to study the effect that rural road improvement has on poverty incidence in Laos. Household survey data are used to distinguish three categories of rural villages according to their road access: (i) no vehicular access; (ii) dry season only access; and (iii) all weather access. A general equilibrium model of the Lao economy is then used to simulate, first, the effect of upgrading category (i) to category (ii) roads, and second, category (ii) to category (iii) roads. The former has a larger poverty‐reducing effect but is also more costly.     

通货膨胀的各种成因及其在我国的实证分析

本文不仅总结了当前主要的实证研究文献提出的我国通货膨胀的种种成因,而且对每种原因给予了比较分析和新的实证分析,并在此基础上尝试进行了综合分析,以得出一些有益的结论。     

日本“肯定列表制度”对我国，农产品出口的影响

关于日本肯定列表制度对我国农产品出口的影响,虽然有很多论述,然大多都是定性分析。本文利用最新的数据,运用移动平均剔除法模型,进行定量分析,估算出日本肯定列表制度对我国农产品贸易的损失,并提出应对之经验和对策。     

Positive emotions and behavioral intentions of customers in full-service restaurants: Does aesthetic labor matter?

Based on the Mehrabian–Russell model, this study investigates whether aesthetic labor performance affects the positive emotions and behavioral intentions of customers in full-service restaurants. This research also identifies the mediating effects of positive emotions on aesthetic labor and behavioral intentions. A total of 320 valid questionnaires were collected from the customers of a well-known chain of restaurants in Taiwan. Structural equation modeling was used to estimate a model linking aesthetic labor, positive emotions, and behavioral intentions. The results revealed that aesthetic labor positively and significantly influences positive emotions and behavioral intentions, and that positive emotions positively and significantly influence behavioral intentions. However, when the control variables of food quality, ambiance, and service quality were added, aesthetic labor did not positively influence behavioral intentions. In addition, positive emotions did not mediate the relationship between aesthetic labor and behavioral intentions. Finally, we provide a discussion on practical implications and suggestions for future research.