媒体情绪与房价波动

本文使用2000—2015年中国112个大中城市媒体报道和房价月度指数研究了媒体异质性对房价波动的影响。研究发现,纸媒情绪对房价波动的影响大于网媒情绪,中央媒体情绪对房价波动的影响大于地方媒体情绪,明星微博情绪对房价波动的影响大于普通微博情绪,媒体语气确定性和报道篇幅对房价波动有正影响,明星城市媒体情绪较非明星城市更易引起房价波动。据此,为防范非理性房价波动,应加强对不同媒体报道的监管。     

Oil price forecasting under asymmetric loss

Based on the approach developed by Elliott et al. (2005), we found that the loss function of a sample of oil price forecasters is asymmetric in the forecast error. Our findings indicate that the loss oil price forecasters incurred when their forecasts exceeded the price of oil tended to be larger than the loss they incurred when their forecast fell short of the price of oil. Accounting for the asymmetry of the loss function does not necessarily make forecasts look rational.     

剖析有差别计件工资制的作用机理

有差别计件工资制历经一百多年的发展,仍有着强大的生命力。本文试图从经济学和管理学的领域剖析有差别计件工资制的作用机理,阐明这种计酬方式的现实意义。     

关于网络行业竞争与接入定价的理论分析

网络行业在引入竞争后,很难再保证其普遍服务目标的实现。本文根据进入者进入情况的不同,从理论上分析了针对不同的情况,管制者应如何设立普遍服务基金及制定相庆的接入价格,使得网络行业在保证普遍服务目标实现的同时,又能有效竞争,提高这些行业的经营效率。     

中国国有企业改革：经验、困境与出路*

作为国有企业产权改革主要模式,“混合所有制”改革是否有助于确保国有资产保值增值,是否有助于推动中国经济可持续发展等问题仍存在探讨空间。本文基于对于改革开放以来中国国有企业改革的成就和教训的考察,指出“混合所有制”可以作为竞争性部门国有企业改革的一个过渡形式;对于垄断央企的改革应该充分借鉴国际上自然垄断行业的改革经验,打破行政垄断,推动竞争性框架建立,并切实实现从“管企业”逐步调整为“管资本”,通过改革实现国有资产的保值增值,并为经济创造新的增长点。     

Factors affecting the price of Swedish forest land, 1965–1987

A model for the determination of the price of forest land is estimated for Sweden from 1965–1987, when (except for a few years) private non-industrial forest owners could finance their holdings at a negative real after-tax borrowing rate. It is assumed that credit has been limited by the value of mortgage security, assessed independently of the price settlement. The estimated coefficients of the regression equation are used for a calculation of the average real rate of discount of forest owners and the average value of amenities. The model also evaluates the effect of the temporary land price regulation from 1979–1987.