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.     

解决我国商业银行流动性过剩问题的对策研究

商业银行的流动性过剩主要存在商业银行存差持续扩大、超额准备金居高不下、货币供应量增长过快和商业银行信贷反弹过快等四大表现。商业银行体系流动性过剩问题是多种因素综合作用的结果，且其会对我国的经济金融造成一些危害，为此，本文从商业银行角度出发，对解决流动性过剩问题提出如下对策建议：优化资产结构，提高资金运用边际收益；以利率为主要变量，实施收益精细化经营；树立以客户为中心的经营理念，积极发展零售和批发业务；加快创新，增强商业银行管理能力；探索“走出去”战略的金融支持体系，加快商业银行发展以及改善金融生态环境等。     

解决我国商业银行流动性过剩问题的对策研究

商业银行的流动性过剩主要存在商业银行存差持续扩大、超额准备金居高不下、货币供应量增长过快和商业银行信贷反弹过快等四大表现.商业银行体系流动性过剩问题是多种因素综合作用的结果,且其会对我国的经济金融造成一些危害,为此,本文从商业银行角度出发,对解决流动性过剩问题提出如下对策建议:优化资产结构,提高资金运用边际收益;以利率为主要变量,实施收益精细化经营;树立以客户为中心的经营理念,积极发展零售和批发业务;加快创新,增强商业银行管理能力;探索"走出去"战略的金融支持体系,加快商业银行发展以及改善金融生态环境等.     

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.     

中国的货币化与金融化:影响因素与演进趋势

我国的货币化与金融化问题,尽管基本上符合经济货币化与金融化的总体趋势和演进规律,但却具有一定的独特性:具有极高的货币化比率和偏低的金融相关比率(从而极低的证券化比率).从储蓄分流、金融结构优化和缓解流动性过剩3个视角对该问题的分析表明:储蓄分流应该是增量分流,金融结构优化应该是缩减间接融资的相对规模,我国出现货币化"折点"应满足的条件是M2持续增长但其增速却持续低于名义GDP增速.就我国货币化"折点"出现的时间而言,尽管具有不确定性,但金融相关比率和证券化比率在相当长时间内继续提升却是可以明确预期的.     

Sticky Price Models,Durable Goods,and Real Wage Rigidities

The standard two‐sector New Keynesian model with durable goods is at odds with conventional wisdom and vector autoregression (VAR) evidence: Following a monetary shock, the model generates (i) either negative or no comovement across sectoral outputs and (ii) aggregate neutrality of money when durable goods' prices are flexible. We reconcile theory with evidence by incorporating real wage rigidities into the standard model: As long as durable goods' prices are more flexible than nondurable goods' prices, we obtain positive sectoral comovement and, thus, aggregate nonneutrality of money.