马克思转形理论的一个数理证明--兼评鲍特凯维兹关于转形问题的研究

转形问题被称作"经济学的世界难题",争论了一百多年至今没有定论.本文在全世界首次成功地证明了马克思的平均利润总额等于剩余价值总额、生产价格总额等于价值总额这两个等式同时成立这一所谓"转形问题"是完全正确的,我们的证明方法是建立在对马克思经济学的辨证本质的理解和领悟之上的.本文还对鲍特凯维兹关于马克思转形问题的研究方法进行了批评.     

中国股权溢价之谜的检验--Hansen-Jagannathan方法的应用

本文估计的中国投资者的相对风险回避系数远远大于10,远大于Mehra和Prescott(1985)所认可的最高水平,证实了中国股市存在股权溢价之谜,并指出了解释中国股权溢价之谜的潜在研究途径。     

公司购并利益相关者的利益均衡吗?——基于公司购并动因的风险溢价套利分析

本文利用信息经济学与博弈论理论 ,从公司利益相关者的利益均衡角度对公司购并进行动态博弈分析。为刻画行为主体利益动态均衡过程 ,论文应用Rubinstein讨价还价模型 ,揭示公司购并过程中利益均衡及其对公司购并的推动作用。为解开“购并公司股东损益之谜” ,论文引进购并公司信息占优条件下的风险套利模型 ,分析购并公司溢价购并损失在市场背后的风险套利补偿。在此基础上 ,采用市场分析法对上市公司购并利益分配进行实证 ,检验结果显示中国证券市场同样存在“购并公司股东损益之谜”。     

Predictability in Consumption Growth and Equity Returns: A Bayesian Investigation

We use a Bayesian method to estimate a consumption-based asset pricing model featuring long-run risks. Although the model is generally consistent with consumption and dividend growth moments in annual data, the conditional mean of consumption growth (a latent process) is not persistent enough to satisfy the restriction that the price-dividend ratio be an affine function of the latent process. The model also requires relatively high intertemporal elasticity of substitution to match the low volatility of the risk-free return. These two restrictions lead to the equity volatility puzzle. The model accounts for only 50% of the total variation in asset returns.     

The Forward Exchange Rate Bias Puzzle Is Persistent: Evidence from Stochastic and Nonparametric Cointegration Tests

An important puzzle in international finance is the failure of the forward exchange rate to be a rational forecast of the future spot rate. We document that even after accounting for nonstationarity, nonnormality, and heteroskedasticity using parametric and nonparametric tests on data for over a quarter century, U.S. dollar forward rates for the major currencies (the British pound, Japanese yen, Swiss franc, and the German mark) are generally not rational forecasts of future spot rates. These findings deepen the forward exchange rate bias puzzle, especially as these markets are the most liquid foreign exchange markets with very low trading costs.     

Finance theory: A house without windows

In this paper we aim to build on the existing critical finance literature by exploring how finance theory maintains both its momentum and hegemony. More specifically, by using an example at the core of finance theory (namely, portfolio asset allocation) we illustrate how finance keeps itself artificially alive by taking data from the outside world, often ignoring the rich complexities of the context which has given rise to the data, and using these ‘new facts’ to create puzzles which then lead onto more activity to see how the accepted core can or cannot be extended to incorporate the ‘new facts’. Against this process the paper then shows how the more obvious approach of engaging with the various participants can lead to greater insight and understanding. Given this approach, facts are not just anomalies which need to be explained away but part of the environment which help us to understand the various activities of individuals and organisations. The paper concludes by outlining a research agenda which develops a number of streams of research in critical finance and needs to be addressed in an open manner if traditional finance is to move from being closed and increasingly moribund to a subject which captures the vibrancy and dynamism of financial activities/markets across the globe.     

浙江中小企业的现状、问题及发展对策

沐浴着新世纪的阳光 ,新一代的思想政治工作者接受着瞬息万变的政治、经济、科技、道德、文化辐射 ,该怎样面对新实际、新情况 ,探索工作新思路、新途径成为现实课题。本文试图提出学习型思想政治工作者概念 ,以研究新时期思想政治工作者如何跨越“老政工”干部形象光环 ,塑造     

Reexamining the Exchange Rate Exposure Puzzle by Classifying Exchange Rate Risks into Two Types

The “exchange rate exposure puzzle” refers to the phenomenon in which the proportion of firms with significant exchange rate exposure tends to be lower than expected figures. Some studies use changes in exchange rate to indicate exchange rate risks relevant to firm value. However, a different measure of exchange rate risks, which is the volatility in exchange rate changes, can also affect the value of firms because exchange rate uncertainty can affect international trade and investments of firms. This study classifies exchange rate risks into two types, namely, changes in exchange rate and the standard deviation of exchange rate changes, and empirically examines exchange rate exposure of firms in 12 countries. The results suggest that the proportion of firms with significant exchange rate exposure increases substantially, and thus, weakens the exchange rate exposure puzzle when we also count the cases in which the standard deviation of exchange rate changes affects stock return significantly.     

Inflation targeting and the forward bias puzzle in emerging countries

Based on quarterly data on 31 emerging countries (among which 16 are inflation targeting countries) from 1990Q1 to 2014Q3, we obtain a strong support for the conjecture that the implementation of inflation targeting weakens the Fisherian relation between expected depreciation and the interest rate differential (uncovered interest parity condition) and thus is conducive to the appearance of the forward bias puzzle in emerging countries. We show that this reflects the performance of inflation targeting regimes in lowering the level and volatility of inflation. Our finding holds when controlling for country-specific effects, time-specific effects, global disinflation, exchange rate management, crises, and using different econometric techniques.     

Age‐Dependent Increasing Risk Aversion and the Equity Premium Puzzle

We introduce a new preference structure—age‐dependent increasing risk aversion (IRA)—in a three‐period overlapping generations model with borrowing constraints, and examine the behavior of equity premium in this framework. We find that IRA preferences generate results that are more consistent with U.S. data for the equity premium, level of savings and portfolio shares, without assuming unreasonable levels of risk aversion. We find that the relative difference between the two risk aversions (how much more risk‐averse old agents are relative to the middle‐aged) matters more than the average risk aversion in the economy (how much more risk‐averse both cohorts are). Our findings are robust with respect to a number of model generalizations.