Value Relevance of Inflation-adjusted Equity and Income

This paper investigates the role incremental information content of inflation-adjusted data plays in explaining the market value of equity and stock returns on the Istanbul Stock Exchange (ISE). We show the effect of inflation accounting application on basic financial ratios, and we test the value relevance of inflation-adjusted and historical cost-based book value and earnings. The findings show that inflation adjustment affects financial ratios significantly, which may create different risk assessments for the selected firms. Furthermore, the results indicate that both inflation-adjusted and historical cost-based earnings and book values are significantly value relevant. The two sets of data are not to be used as substitutes, but, rather, they are complementary. For this reason, inflation-adjusted data should be required as supplementary data to the historical cost information rather than in place of historical cost data.     

A social choice function implementable via backward induction with values in the ultimate uncovered set

We prove the existence of a social choice function implementable via backward induction which always selects within the ultimate uncovered set. Whereas the uncovered set is the set of maximal elements of the covering relation, the ultimate uncovered set is the set obtained by iterative application of this covering operation. Dutta and Sen (1993) showed that any social choice function which is the solution of a generalized binary voting procedure is implementable via backward induction. Our result follows from Dutta and Sen's theorem, in that we construct a binary voting procedure always selecting within the ultimate uncovered set. We use the classical multistage elimination procedure, which always selects an alternative within the uncovered set. When this procedure is also used to select among all of the possible agendas or orderings of alternatives within the procedure, the alternative selected (from the agenda selected) will be within the uncovered set of the uncovered set. Our result follows from repeated application of this construction. Intuitively, the procedure constructed consists of requiring agents to vote on how they should vote and so on. Received: 7 April 1997 / Accepted: 15 October 1998     

基于工作过程的《进出口商品归类》课程改革

《进出口商品归类》是报关与国际货运专业的核心课程,在教学内容设计上应符合"以岗位需求为导向,以能力培养为本位"的设计理念,遵循报关与物流业务的一般程序。本文通过分析课程性质,结合行业的实际需求、以项目和工作任务为中心,提出基于工作过程的教学整体设计及单元设计。     

Trade credit versus bank credit: Evidence from corporate inventory financing

In this study, I introduce capital market imperfections into a structure framework of inventory investments and investigate impacts of trade credit on firms’ inventory dynamics and analyze the relationship between trade credit and bank loans. As a result, firms end up using a mix of trade credit and bank loans. I find that the use of trade credit and bank credit can be either complements or substitutes. During tight monetary periods, trade credit operates mainly as a substitute for bank borrowing while during looser monetary episodes even when the economy is weak, trade credit and bank loans are dominated by a complementary effect.     

Functional data analysis for volatility

We introduce a functional volatility process for modeling volatility trajectories for high frequency observations in financial markets and describe functional representations and data-based recovery of the process from repeated observations. A study of its asymptotic properties, as the frequency of observed trades increases, is complemented by simulations and an application to the analysis of intra-day volatility patterns of the S&P 500 index. The proposed volatility model is found to be useful to identify recurring patterns of volatility and for successful prediction of future volatility, through the application of functional regression and prediction techniques.     

Do institutional investors have superior stock selection ability in China?

This paper uses unique data on the shareholdings of both institutional and individual investors to directly investigate whether institutional investors have better stock selection ability than individual investors in China. Controlling for other factors, we find that institutional investors increase (decrease) their shareholdings in stocks that subsequently exhibit positive (negative) short- and long-term cumulative abnormal returns. In contrast, individual investors decrease (increase) their shareholdings in stocks that subsequently exhibit positive (negative) short- and long-term cumulative abnormal returns. These findings indicate that institutional investors have superior stock selection ability in China.     

Housing prices and the optimal time-on-the-market decision

This paper provides a model for housing prices based on a seller solving the optimal time-on-the market problem. Given the seller’s optimal time-on-the market, analytical expressions are provided for both the expected time-on-the-market and the sales price. These expressions facilitate the computation of comparative statics. Consistent with economic intuition, we show that (i) both the expected time-on-the market and sales price decrease as interest rates increase, (ii) the expected time-on-the market increases and the expected sales price decreases as offer activity declines, and (iii) the expected time-on-the market and expected sales price both increase as the list price increases.     

精准型电子商务的竞争力何在

时下,粗放型的电子商务时代已经结束,精准型的电子商务时代已经开始。"数据挖掘"和"全程供应链管理"对内对外共同构成了精准型电子商务的核心,实现高效协同、以人为本,满足每一位用户的不同要求。曾经的阿里巴巴创造了无数C2C神话,而当下的企业主如果顾步守旧则将被时代淘汰。     

The new main bank system

We develop a main bank model where the main bank decides whether or not to raise additional funds from the capital market to continue to invest in a borrowing firm when nonmain banks withdraw funds. We show that the threat of withdrawal of nonmain banks is more likely to force the main bank to perform efficiently in handling troubled loans, thereby preventing problems with zombie firms, if the potential cash flow (liquidation value) of the firm decreases (increases) relative to the amount funded by nonmain banks. The theoretical results provide both efficiency evaluations for the renewal of the main bank relation in Japan after the end of the 1990s and empirical implications for the renewed main bank system.