Does program trading contribute to excess comovement of stock returns?

Daily returns of stocks with high program trading comove more with each other but less with others. This significant comovement is disconnected with market movements and news of fundamentals and becomes stronger when market uncertainty is higher. It can be explained by neither the hypotheses of gradual information diffusion and liquidity provision nor the effects of quantitative trading signals, earnings announcements and index fund trading. Its non-fundamental nature is further demonstrated by the observation of program trading stimulating return reversals. Underlying this comovement is the high persistence of program trading. Our findings support the theory of habitat investing and demonstrate program trading creates a distinct source of excess return comovement.     

Price Comovement and Institutional Performance Following Large Market Movements

This paper investigates the price comovement of stocks actively traded by institutions and the investment performance of foreign and domestic institutional investors in Taiwan's stock markets during periods of large market movements. Stocks of small size, high share turnover, and high return volatility tend to move together with the market when markets rise sharply. In short-term holdings, foreign investors and domestic mutual funds can outperform the market by trading small-size, high-turnover, and high-volatility stocks.     

Has the correlation of inflation and stock prices changed in the United States over the last two centuries?

The relationship between stock prices and the inflation can be either negative or positive, depending on the strengths of various theoretical channels at work. In this study, we examine the dynamic conditional correlations of stock prices and inflation in the United States over the period of 1791–2015 under a time-varying framework. The results of our empirical analysis reveal that correlations between the inflation and stock prices in the United States evolve heterogeneously overtime. In particular, the correlations are significantly positive in the 1840s, 1860s, 1930s and 2011, and significantly negative otherwise. The policy implications of these findings are then discussed.     

Dynamic Interactions Among Macroeconomic Variables and Stock Indexes in Taiwan,Hong Kong,and China

This study analyzes dynamic interactions among macroeconomic variables and the stock markets of Taiwan, Hong Kong, and China by incorporating the long-term and short-term comovements, which can shed some light on the long-term and short-term market efficiency/inefficiency in the region. The number of common cycles is investigated in these markets and each stock index series is decomposed into its trend and cyclical components. The authors observe that foreign stock markets have greater influence on the domestic market than domestic macroeconomic variables do. This implies that policymakers need to consider not only macroeconomic variables but also the effects of markets on one another when markets are integrated.     

Administrative division adjustments and stock price comovement: Evidence from the city–county mergers in China

Under the background of Chinese market segmentation, whether government-led administrative division adjustments can promote regional economic integration is a practical issue. Taking interregional firms’ stock price comovement as a micro measurement of regional integration, this paper investigates the regional integration effect of administrative division adjustments, i.e., city–county mergers. We find that stock price comovement between county-level and municipal district-level firms in the merged counties and municipal districts significantly improve after city–county mergers, particularly in regions with a higher degree of market segmentation and lower degree of marketization. We further find that the increase in stock price comovement caused by city–county mergers emerges from the increase in comovement of real activities between firms in the merged counties and municipal districts. Taken together, our results suggest that government-led administrative division adjustments effectively promote regional integration.     

A Comparative Analysis of the Public Spending Efficiency of the New EU Member States: A DEA Approach

This paper provides an analysis of the performance and efficiency of the public sector in the European Union (EU). Using composite indicators and data envelopment analysis, we focus on the new EU member countries, which were involved over the past decade in the accession and integration process. Results of the analysis indicate that, unlike "old" EU members, which invested more in sectors such as education or health, countries in Central and Eastern Europe, the "new" EU member states, have directed public resources mainly toward the performance of the government sectors. However, greater efficiency has been achieved precisely in those areas where they have invested less.     

我国债务重组准则的变革分析及实施效果评价——基于沪市ST公司2007年年报分析

2007年是我国财政部2006年颁布的新会计准则体系实施的第一年,其中债务重组准则的实施运用备受关注。本文在分析债务重组准则变革的基础上,以沪市96家ST公司①2007年年报资料为依据,重点对新债务重组准则的实施效果及其产生的影响进行了相关的探讨。     

The Choice Between Spin-offs and Sell-offs

Spin-offs and sell-offs are alternative methods for divesting assets, but the effects on the parent firm differ substantially. We examine firms' characteristics that may influence the asset divestiture choice between a spin-off and sell-off. Results of the analysis indicate that the primary factors influencing the choice of divestiture type are financial distress, number of directors on the board, whether the CEO is also the Board Chair, and the size of the unit divested.