基本养老保险筹资权行使主体的确定及其理论依据

基本养老保险筹资权的行使主体的确定问题,应从中央与地方政府财权划分的角度进行分析。我国地方政府行使基本养老保险筹资权存在不合理性,应建立由中央政府统筹的基本养老保险制度。     

Investigation of institutional changes in the UK housing market using structural break tests and time-varying parameter models

This paper investigates the effects of institutional changes within the UK housing market in recent decades using structural break tests and time-varying parameter models. This approach is motivated by models of institutional change drawn from the political science literature which focus on the existence of both fast-moving and slow-moving institutional changes and the interactions between them as drivers of the dynamics of asset prices. As a methodological contribution, we use several time-varying parameter models for the first time in investigations of institutional change. Our findings support the existence of both structural breaks and continuous variance in parameters. This contributes to our understanding of the housing market in two respects. Firstly, the dates of structural breaks appear to better match unexpected market shocks rather than remarkable political events, and this supports prior institutional theory. Secondly, assessment of the effect of slow-moving institutional changes shows that people’s biased expectations rather than the economic fundamentals have increasingly played an important role in driving housing prices in the short run although fundamentals continue to drive house prices to converge to their long-run equilibrium.     

The time‐varying performance of UK analyst recommendation revisions: Do market conditions matter?

This study examines the time‐varying performance of investment strategies following analyst recommendation revisions in the UK stock market, with specific emphasis on the impact of changing market conditions. We find a negative relationship between the recommendation performance and market conditions as measured in terms of past market return and market volatility. In particular, the upgrade (downgrade) portfolio generates significantly positive (negative) net abnormal returns in bad market conditions (e.g., the dot‐com bubble burst in 2000 and the credit crisis in 2007), but not in other periods of time. Moreover, our non‐temporal threshold regression analysis shows that the reported negative relationship disappears when market conditions become better, i.e., when the past market return (market volatility) is higher (lower) than a certain level, indicating the importance of taking non‐linearity into account in the long sample period as examined in this study. Our time‐series bootstrap simulations further confirm that the superior recommendation performance in bad market conditions is not due to random chance; analysts have certain skills in making valuable up/downward revisions in bad markets.     

Identification of house price bubbles using user cost in a state space model

This article studies how much variation in house prices results from nonfundamental factors. We propose a relative valuation approach to quantifying a bubble in housing by incorporating the housing User Cost into a state space model. We find that UK house prices were undervalued from January 1995 to May 2001 and subsequently moved into a bubble over the period to October 2012. Our results support the bounded rationality hypothesis in the long run. However, we also find that the irrational and the rational expectation hypotheses can coexist in the short run when explosive bubbles are driven by price dynamics.     

On the investment value of sell-side analyst recommendation revisions in the UK

Review of Quantitative Finance and Accounting - This study conducts a comprehensive investigation into the investment value of sell-side analyst recommendation revisions in the UK, using a unique...     

政府债务与经济增长影响效应研究文献述评

本文通过对相关文献的系统性梳理分析,总结政府债务对经济增长的影响效应和作用机制:低水平政府债务促进经济增长,高水平债务抑制经济增长,政府债务规模与经济增长整体呈现倒U型关系;政府债务会通过社会投资、资本配置效率、金融风险、利率税收扭曲、财政政策能力和全要素生产率影响国民经济增长.根据我国政府债务的现状和发展趋势,本文提出政策建议:第一,完善各级政府债务发行审查制度;第二,合理规划政府债务资金用途;第三,优化政府性债券发行定价和评级体系,推动债券市场化改革.     

新时期广东粮食发展战略与对策探讨

粮食生产区粮食购销市场化改革，使我省粮食生产进入了一个新的发展时期，严格控制占用耕地，切实保护农田；加强基本农田建设，提高生产能力；调整粮食生产结构；建立粮食安全预警制度，增强应对能力是我省粮食发展的对策。