Order aggressiveness, pre-trade transparency, and long memory in an order-driven market

Recent empirical research has documented that the state of the limit order book influences stock investors' strategies. Investors place more aggressive orders when the same side of the order book is thicker, and less aggressive orders when it is thinner. We conjecture and demonstrate that this behavior is related to long memories of trading volume, volatility, and order signs in stock markets. We investigate our conjecture in two types of artificial stock markets: a transparent market, in which agents observe all limit orders on both sides of the book and order volumes at those prices before they trade; and a less transparent market, in which agents observe only the best five bid and ask quotes with the depth available at these limit prices. The first market structure resembles certain actual stock exchanges in the level of pre-trade transparency, such as the Australian Stock Exchange, NYSE OpenBook, and the London Stock Exchange, whereas the second market structure is consistent with stock exchanges such as Euronext Paris, the Toronto Stock Exchange, the Tokyo Stock Exchange, and Hong Kong Exchanges and Clearing. We demonstrate that our long memory results are robust with different levels of pre-trade transparency, implying that the strategy constructed by the state of the order book is key for explaining long memories in many actual stock exchanges.     

An open-economy macro-finance model of international interdependence: The OECD,US and the UK

This paper develops a multi-country macro-finance model to study international economic and financial linkages. This approach models the economy and financial markets jointly using both types of data to throw light on such issues. The world economy is modelled using data for the US and aggregate OECD economies as well as the US Treasury bond market using latent variables to represent a common inflation trend and a US real interest rate factor. We find strong evidence of global effects on both the US and UK, calling into question the standard closed economy macro-finance specification. These economic linkages also help to explain the co-movement of yields in the US and UK Treasury bond markets.     

北京科技创新对就业的影响与对策

"十二五"期间,我国的经济发展将从保增长向转方式、调结构转变,这就要求各地把科技创新作为经济发展的主要驱动力;同时,要使就业结构与科技创新和产业结构调整方向相适应。明确科技创新对就业结构的影响,     

The Moving Average Ratio and Momentum

I show the ratio of the short‐term moving average to the long‐term moving average (moving average ratio, MAR) has significant predictive power for future returns. The MAR combined with nearness to the 52‐week high explains most of the intermediate‐term momentum profits. This suggests that an anchoring bias, in which investors use moving averages or the 52‐week high as reference points for estimating fundamental values, is the primary source of momentum effects. Momentum caused by the anchoring bias do not disappear in the long‐run even when there are return reversals, confirming that intermediate‐term momentum and long‐term reversals are separate phenomena.     

Market discipline by bank creditors during the 2008–2010 crisis

We investigate whether uninsured depositors, insured depositors, and general creditors exhibit evidence of quantity market discipline during the recent financial crisis. To establish which types of creditors expect to incur loss, we evaluate the FDIC's expectations about losses to creditors at banks that failed between 2008 and 2010. Our results show that quantity market discipline tends to begin far enough in advance to signal to both banks and supervisors that corrective actions can and should be taken. Furthermore, creditors are able to distinguish between banks of different risk levels. Our findings support several policy implications for encouraging market discipline.     

Crash-neutral currency carry trades

Currency carry trades exploiting violations of uncovered interest rate parity in G10 currencies deliver significant excess returns with annualized Sharpe ratios equal to or greater than those of equity market factors (1990–2012). Using data on out-of-the-money foreign exchange options, I compute returns to crash-hedged portfolios and demonstrate that the high returns to carry trades are not due to peso problems. A comparison of the returns to hedged and unhedged trades indicates crash risk premia account for at most one-third of the excess return to currency carry trades.     

用三句话牢记电和磁的关系

电和磁的关系是电工学中非常重要的一部分内容,这部分内容的知识点非常繁杂,极易混淆。经过思考分析和教学实践,把这部分的内容进行总结和组合,化繁为简、用三句话作为线索,把众多的知识点联系起来,归纳成了具有三句话、四个层次、12个知识点的一个结构清晰、简单明了、容易记忆的框图,再把每句话进行细化、对比、联想记忆,达到很好的理解和记忆效果。     

Bubbles in food commodity markets: Four decades of evidence

We use daily prices from individual futures contracts to test whether speculative bubbles exist in 12 agricultural markets and to identify whether patterns of bubble behavior exist over time. The samples begin as far back as 1970 and run through 2011. The findings demonstrate that all 12 agricultural markets experienced multiple periods of price explosiveness. However, bubble episodes represent a very small portion—between 1.5 and 2%—of price behavior during the 42-year period. In addition, most bubbles are short-lived with 80–90% lasting fewer than 10 days. Though receiving far less attention, negative bubbles contribute significantly to price behavior, accounting for more than one-third of explosive episodes. Markets over-react during both positive and negative explosive episodes, leading to a correction as they return to a random walk. This adjustment back to fundamental values is most pronounced with positive bubbles particularly in the earlier part of the sample. While the magnitudes of the corrections are generally small, there were a few instances of significant increases in prices and large over-reactions, most notably in the softs (e.g., cocoa 1973, coffee 1994, cotton 2010). We also find that explosive periods did not become more common or last longer in the second half of the sample period and that the most recent bubble episodes may not have been as severe as in mid-1970s.     

Do Consumers Learn from Their Own Experiences?

It is natural to think that a household may learn from its own experiences and subsequently increase savings. This paper tests empirically the hypothesis that Japanese households learn from their experiences of large expenditure and increase their targets for precautionary savings after such experiences. The results imply that households raise their targets for precautionary savings by 4–5 percent of annual income in response to such experiences. Moreover, data are consistent with the argument that targets for savings affect actual savings. Assuming this holds, the results in this paper suggest that consumers may increase their actual savings following large expenditure.     

Collusion with Fluctuating Exchange Rates: A Note

A fluctuating exchange rate has an impact on how firms value a given stream of profits, thereby affecting the ability of an international oligopoly to collude implicitly. The conversion effect arises because the foreign firm maximizes its profits earned on the home market measured in foreign currency. The discount factor effect captures the fact that exchange rate fluctuations are connected with fluctuations in the interest rates, thereby changing the present value of future profits. Although each effect refers to only one of the firms, considered together they have an identical impact on the home and the foreign firm. If the foreign country is small, the conversion effect and the discount factor effect exactly offset each other. Otherwise, the effects analysed make collusion more difficult to sustain.