持续利用的自然资源价格论

本文提出了自然资源持续利用的福利准则及价格构成，并且还阐述了有关自然资源持续利用的价格理论问题。旨在完善自然资源的价格理论体系。     

肯德基“秒杀”事件引发的促销策略思考

互联网技术改变了人们的生活方式及购买行为,企业为了适应环境的变化纷纷导入网络营销观念。本文以市场营销学为理论基础,分析了肯德基2010年4月的一次促销策略存在的问题,并对企业在互联网背景下制定促销策略提出个人见解。     

药品价格管理政策综述

本文阐述国际上通行的几种药品价格管理政策,总结了我国药品价格管理政策的历史和现状,最后对我国药品价格管理政策的趋势做出预测。     

Electricity price forecasting: A review of the state-of-the-art with a look into the future

A variety of methods and ideas have been tried for electricity price forecasting (EPF) over the last 15 years, with varying degrees of success. This review article aims to explain the complexity of available solutions, their strengths and weaknesses, and the opportunities and threats that the forecasting tools offer or that may be encountered. The paper also looks ahead and speculates on the directions EPF will or should take in the next decade or so. In particular, it postulates the need for objective comparative EPF studies involving (i) the same datasets, (ii) the same robust error evaluation procedures, and (iii) statistical testing of the significance of one model’s outperformance of another.     

论征收补偿协议的行政法效力

房屋征收系政府行为,征收补偿协议系政府职能部门与被征收入签订的、解决征收补偿问题的法律行为。《国有土地上房屋征收与补偿条例》（以下简称《征收条例》）第25条规定：“房屋征收部门与被征收入依照本条例的规定,就补偿方式、补偿金额和支付期限、用于产权调换房屋的地点和面积、搬迁费、临时安置费或者周转用房、     

How to measure competition in an economy in transition

This paper attempts to find a robust method of measuring competition when firms' operational activities are subject to frictions. The first part theoretically tests the indicative quality of two competition measures, the price‐cost margin (PCM) and the profit elasticity, in a model of monopolistic competition. The second part studies the empirical performance of the indices for a panel of Ukrainian manufacturing firms. This study offers a new approach to measuring profit elasticity that relies on structural estimation of a production function. The estimation methodology retrieves a productivity index that is adjusted to imperfect competition. The proposed method of measuring profit elasticity is found to be robust to frictions, but the PCM and traditional profit elasticity are biased, especially when the intensity of competition is low. Empirical findings show that competition exhibits a significantly positive correlation with aggregate productivity performance, while its impact on firm productivity is nonlinear.     

双边市场、不完全信息与二级价格歧视

本文研究了双边市场二级价格歧视问题。本文构建了包括广告商、消费者、垄断平台在内的两阶段博弈模型,研究了在最优与次优情况下平台的定价机制,分析了二级价格歧视对平台利润、社会福利等的影响。研究表明:(1)"顶部无扭曲"或"底部无扭曲"并不严格成立;(2)平台对观众提供的节目质量、广告插播量均可能出现类型逆转的情况;(3)二级价格歧视会增加社会总福利;(4)"会员制"是平台可能的占优定价机制之一。     

Quantile spillovers and dependence between Bitcoin,equities and strategic commodities

This paper has two aims. We first examine the dynamic spillovers between Bitcoin and 12 developed equities, gold, and crude oil for different market conditions using a Bayesian Time-Varying Parameter Vector Autoregressive (TVP-VAR) model with daily spot prices. Our econometric approach enables us to capture the left and right tails as well as the shoulders of the return distribution corresponding to volatility spillovers under the bear, normal, and bull market states among these financial assets. We quantify and trace the dependence and directional predictability from Bitcoin to other assets using the sample cross-quantilogram. Our key findings offer convincing evidence of time variation in the level of volatility. Spillovers between Bitcoin and other financial assets intensify during extreme global market conditions. Secondly, results from the cross-quantilogram indicate strong dependence and positive directional predictability between Bitcoin and most equities and crude oil when market returns are bullish. However, during the bearish market period, there is negative dependence and predictability from Bitcoin to stocks in Finland, the Netherlands, the U.S.A, and the crude oil market only. This implies that Bitcoin can act as a hedge to stocks in Finland, the Netherlands, the U.S.A, and the crude oil market. However, insignificant dependence and directional predictability from Bitcoin to the remaining assets indicate that Bitcoin may act as a safe-haven to these assets during bearish markets. Our findings hold important implications for both international investors and portfolio managers who consider Bitcoin as part of their portfolio diversification and other investment strategies.     

异质性能源消耗强度变化及其影响因素分解——基于四川省可比价能源投入产出表

基于2002—2007年四川省可比价能源投入产出表,分析了四川省6部门的异质性能源的完全能耗系数的变化趋势;采用因素分解法,将能耗强度总量变动的影响因素分解为直接能耗变化、产品技术变化和最终需求结构变化,并分析了不同因素对能源消耗强度变化的影响程度。结果表明:2002—2007年间,除农业外,其他产业部门的煤炭完全能耗系数均呈下降趋势;除了建筑业的天然气完全能耗系数呈上升趋势外,其他产业部门的该系数均呈先升后降的趋势;最终需求结构变动促使各类能源的消耗强度总量呈正向变化;直接能耗变动是影响4类能源的消耗强度变动的最主要因素。     

Pigou,Del Vecchio,and Sraffa: the 1955 International “Antonio Feltrinelli” Prize for the Economic and Social Sciences

In 1955, the Accademia Nazionale dei Lincei awarded the inaugural International “Feltrinelli” Prize for the Economic and Social Sciences to Arthur Cecil Pigou. This paper considers Gustavo Del Vecchio's active role on the selection committee in recommending Pigou for the Feltrinelli Prize and the related correspondence between Pigou, Piero Sraffa, and Del Vecchio. One of the most significant discovery reported in this paper is Sraffa's contention, expressed in an unpublished letter to Del Vecchio, that Pigou had “never been honoured in proportion to his merits.”