人民币汇率走势分析

不同的劳动生产率和不同的现代通货膨胀和紧缩,在不同的国家体现了不同的商品标准定位价格。国际汇率是依据各国当时的单位法定纸币可以交换的商品价值量确定的,应当是各种法定纸币的各国商品标准定位价格的比例。根据这样的现代通货理论,可以分析人民币和美元、欧元、日元汇率的基本走势。     

The revaluation of assets as a signalling device: a theoretical and an empirical analysis

In many countries, firms can choose whether or not to report a revaluation in the financial statements. An analytical model is developed to indicate conditions in which it is more likely that successful firms will choose not to revalue assets as a credible signal to potential investors. These industry settings include a high variance in performance and low equity-to-debt ratios. The empirical results for Belgium confirm that successful firms are less likely to revalue assets in those industries. However, only the revaluation of fixed tangible assets and not financial assets seems to be a credible signal. Finally, the results support the choice to revalue, but not the amount of revaluation, as a signalling device.     

货币信用属性演化的历史与逻辑

通过讨论主要货币起源与演化理论的矛盾与不足,从货币取得人们信任的角度,尝试整合了货币起源与演化的事实与逻辑,由此可以认为货币的本质是信用,(商品、金属)货币和纸币一样都是信用货币,货币演化是货币内涵的威权因素和物的因素相互竞争的结果;且货币制度的核心是信用。维持人们对货币的信心与币值稳定应当是任何货币调控的出发点和归宿。     

Persistent Doubt: An Examination of Hedge Fund Performance

We examine whether performance persistence is suspicious. Top quintile portfolios formed on the Sharpe ratio, alpha, and information ratio persistently outperform similarly constructed mediocre third quintile portfolios throughout our sample period, but performance is more modest and less persistent when portfolios are formed on the excess manipulation‐proof performance measure (EMPPM). By selecting funds formed on ranking by Sharpe and information ratios, investors also select funds that have persistently doubtful performance according to the doubt ratio. In contrast, portfolios formed on alphas and especially the EMPPM have much less excess and persistent doubt.     

Optimum choice of invoice currency with correlated exchange rates†

In this paper, we revisit optimal choice of invoice currency for an exporting firm in the face of exchange rate uncertainty. We demonstrate that when a vehicle currency is available, the optimum choice depends not only on the volatility of the exchange rates but the covariance between them as well. In particular, we show that when the exchange rates between the exporter and importer currencies on the one hand, and the exporter and the vehicle currency on the other, are positively correlated, vehicle currency becomes an attractive choice. The intuition underlying this novel outcome is that this regime dampens profit variability for the exporter.     

Optimum Currency Areas Under Inflation Targeting

Several countries face the choice between targeting inflation independently and entering a monetary union that targets inflation. The present paper extends the theory of optimum currency areas to deal with this choice. In contrast to the conventional theory, countries might form more of an optimum currency area the more asymmetric supply shocks are.     

Earnings Manipulation in Failing Firms

Prior literature and anecdotal evidence, most recently provided by allegations relative to Enron, Global Crossing, and WorldCom, suggest that failing firms (defined here as prebankruptcy firms) may be motivated to engage in fraudulent financial reporting to conceal their distress. I examine two research questions: (1) Are failing firms' prebankruptcy financial statements more likely to exhibit signs of material income increasing earnings manipulation than those of nonfailing firms? (2) Do auditors detect the overstatements in firms that they perceive to be failing? I predict and find that as (ex post) bankrupt firms that do not (ex ante) appear to be distressed approach bankruptcy, their financial statements reflect significantly greater material income‐increasing accrual magnitudes in nongoing‐concern years than do control firms. The accrual behavior of these firms resembles that of bankrupt firms that the Securities and Exchange Commission (SEC) has sanctioned for fraud. Like sanctioned firms, the nonstressed bankrupt firms display significantly greater (material) increases in receivables; inventory; property, plant, and equipment; sales; net working capital, current, and discretionary accruals in prebankruptcy nongoing‐concern years than do control firms. They also display significantly more negative changes in cash flows from operations and net cash and a greater disparity between accrual‐based net income and operating cash flows than do control firms, consistent with Lee, Ingram, and Howard 1999. Finally, I predict and find that these firms' going‐concern years reflect evidence consistent with auditor‐prompted reversal of previous overstatements. These results are based on parametric and nonparametric tests for various subsample combinations drawn from a sample of 293 bankrupt firms representing approximately 2,500 observations.     

Wealth transfer through private placements: Evidence from China

We examine private issuance of public equity (PIPE) in China, and our results suggest that PIPE investors benefit from the price manipulation before and after issuance. These investors tend to cash out after lockup expiration and make large profits. We also find evidence that the trading of PIPE investors after lockup expiration is informed. Tests about the abnormal returns in the 3 years after lockup expiration suggest that at least part of the benefits PIPE investors receive come from wealth transfer from outside investors. Overall, PIPE issuers in China seem to use an opaque mechanism to compensate PIPE investors.     

The Effects of Productivity Shocks,Financial Shocks,and Monetary Policy on Exchange Rates: An Application of the Currency Crisis Model and Implications for Emerging Market Crises

What kind of shock affects exchange rate dynamics? How much of an effect does the monetary policy have on exchange rates? To answer these questions empirically based on the currency crisis model, I use panel data on 51 emerging countries from 1980 to 2011, identify shocks, and apply instrumental variable methods. I found that both productivity shocks and shocks to a country’s risk premium affect exchange rates and a 1 percentage point increase in the policy interest rate is associated with a 1 percentage point appreciation of domestic currency. I further apply this method to Asian and Latin-American crises.