Leverage constraints and asset prices: Insights from mutual fund risk taking

Prior theory suggests that time variation in the degree to which leverage constraints bind affects the pricing kernel. We propose a measure for this leverage constraint tightness by inverting the argument that constrained investors tilt their portfolios to riskier assets. We show that the average market beta of actively managed mutual funds—intermediaries facing leverage restrictions—captures their desire for leverage and thus the tightness of constraints. Consistent with theory, it strongly predicts returns of the betting-against-beta portfolio, and is a priced risk factor in the cross-section of mutual funds and stocks. Funds with low exposure to the factor outperform high-exposure funds by 5% annually, and for stocks this difference reaches 7%. Our results show that the tightness of leverage constraints has important implications for asset prices.     

Testing for mutually exciting jumps and financial flights in high frequency data

We propose a new nonparametric test to identify mutually exciting jumps in high frequency data. We derive the asymptotic properties of the test statistics and show that the tests have good size and reasonable power in finite sample cases. Using our mutual excitation tests, we empirically characterize the dynamics of financial flights in forms of flight-to-safety and flight-to-quality. The results indicate that mutually exciting jumps and risk-off trades mostly occur in periods of high market stress. Flight-to-safety episodes (from stocks to gold) arrive more frequently than do flight-to-quality spells (from stocks to bonds). We further find evidence that reverse cross-excitations or seeking-return-strategies exhibit significant asymmetry over the business cycle, reflecting the fact that investors appear to be selling gold – rather than bonds – to invest in stocks during good market conditions.     

移动营销的商业模式分析

随着中国国内移动通讯行业的迅速发展,移动手机用户及移动数据的使用也迅速增加,移动营销面临着前所未有的发展机遇。本文概述了移动营销在中国目前的发展情况,并对移动营销模式发展的制约因素进行了分析,探讨了企业可利用的移动营销商业模式,以促进企业的营销创新。     

Interactive effects of information exchange,relationship capital and environmental uncertainty on international joint venture (IJV) performance: An emerging markets perspective

Prior research on the role of international joint ventures (IJV) in the emerging markets generally ignores the impact of information exchange on IJV performance as well as the mediating role of relationship capital (a key measure of competitive dynamics and co-evolution) and the moderating impact of environmental uncertainty in this process. This paper addresses these important research gaps by exploring the direct effect of information exchange on IJV performance as well as indirect (mediated) effect through mutual trust and reciprocal commitment, two key components of relationship capital. In addition, this paper investigates the role of environmental uncertainty as a moderator of these mediating effects. Results from a study of 205 contractual IJVs in China, a highly competitive and dynamic emerging market, show that foreign and local partners collaborate and co-evolve through regular information exchange that helps them build relationship capital with each other in the form of mutual trust and reciprocal commitment, which in turn leads to better IJV performance. In addition, environmental uncertainty negatively moderates (weakens) the positive effects of information exchange on mutual trust and reciprocal commitment but not their impact on IJV performance. The authors discuss the implications of these findings for future research on the role of relationship capital in the successful formation and management of IJVs in the emerging markets.     

The instantaneous capital market line

Summary. We show that if the intercept and slope of the instantaneous capital market line are deterministic, then investors will not hold any hedge portfolios in the sense of Merton [9, 11]. They will choose portfolios that plot on the capital market line, and they will slide up and down the capital market line over time as their wealth and risk tolerance change. This result allows us to aggregate over investors and derive a single factor CAPM where the first and second moments of security returns may change stochastically over time and markets are potentially incomplete.Received: 21 June 2004, Revised: 10 December 2004, JEL Classification Numbers: G11, G12.An earlier version of this paper was presented at the Econometric Society Meeting in Pasadena (1997) under the title “Portfolio selection and asset pricing with dynamically incomplete markets and time-varying first and second moments”.     

我国城市化与住区建设互动影响研究

文章论述了具有中国特色的城市化道路及其相对应的住区建设模式，认为城市化的发展趋势直接影响和制约着住区建设的发展方向和发展模式，同时住区建设也将反作用于城市化发展，因此研究我国城市化与住区建设的互动影响具有重要的现实意义。     

Australian equity mutual fund size effects

Berk and Green propose a model of a superannuation fund industry, with a limited population of superior fund managers and a competitive investor market. In this market, superior fund managers capture the value they generate, leaving investors with a normal return on their investment. Furthermore, it is argued that previous period returns, age of the fund and management costs explain variation in net cash flow paid into a fund over time. The Berk and Green predictions find some support in empirical tests, reported in the present paper, based on Australian Morningstar retail and wholesale equity fund data over the period 1995–2005.     

Mutual fund flows and investors’ expectations in BRICS economies: Implications for international diversification

This paper empirically examines the relationship between different classes of mutual funds, measures of investors’ expectations and business cycle movements in the BRICS markets over the 1996Q1-2017Q3 period. Applying the Panel Vector Autoregressive (PVAR) model in a Generalized Method of Moments (GMM) setting, the results suggest a strong causal relationship between mutual fund flows and measures of investors’ future expectations. In particular, fund flows are forward-looking and assist in forecasting real economic conditions. Moreover, investors choose to invest in riskier funds when economic conditions are good, while they prefer safer options in poor economic situations. These findings have important implications for international diversification.     

中美利率与汇率联动关系的实证研究:2005～2008

在经济金融全球化的今天,尤其伴随我国金融业全面开放、人民币国际化进程的逐步推进,中美利率与汇率联动关系的研究显得日益重要。本文在借鉴经济学有关利率和汇率联动关系的理论模型和传导机制的基础上,运用计量经济学理论模型和统计软件Eviews5.0,通过对利率与汇率经济变量的平稳性检验、协整关系检验、因果关系检验、冲击反应分析和方差分解检验,较为全面地对中美利率与汇率的联动关系进行了实证分析。通过实证分析,我们发现中美利率和汇率在长期内存在协整关系,但短期联动关系不足,我国应加快推进利率市场化进程,积极完善人民币汇率形成机制,使我国利率政策和汇率政策相互协调,促进宏观经济向内外均衡发展。     

Mutual Fund Performance: Measurement and Evidence1

The paper provides a critical review of empirical findings on the performance of mutual funds, mainly for the US and UK. Ex‐post, there are around 0‐5% of top performing UK and US equity mutual funds with truly positive‐alpha performance (after fees) and around 20% of funds that have truly poor alpha performance, with about 75% of active funds which are effectively zero‐alpha funds. Key drivers of relative performance are, load fees, expenses and turnover. There is little evidence of successful market timing. Evidence suggests past winner funds persist, when rebalancing is frequent (i.e., less than one year) and when using sophisticated sorting rules (e.g., Bayesian approaches) ‐ but transactions costs (load and advisory fees) imply that economic gains to investors from winner funds may be marginal. The US evidence clearly supports the view that past loser funds remain losers. Broadly speaking results for bond mutual funds are similar to those for equity funds. Sensible advice for most investors would be to hold low cost index funds and avoid holding past ‘active’ loser funds. Only sophisticated investors should pursue an active ex‐ante investment strategy of trying to pick winners ‐ and then with much caution.