Stock Markets Liquidity, Corporate Governance and Small Firms

While the importance of equity markets as a vehicle for capital formation is well recognized, their role in providing economically valuable governance services, particularly to small and medium enterprises (SME), has not received much attention. The paper examines the role of public policy in promoting the governance role of secondary equity markets for the benefit of SMEs. The paper first outlines the mechanisms through which equity markets could promote good governance in small firms, showing that equity markets serve as a monitoring and control conduit for outsiders to enforce good governance at the firm. It then establishes that the ability of equity markets to deliver good governance is closely related to those markets’ liquidity, presenting further international evidence that firms supported by liquid equity markets realize improved economic performance. Thus, the governance services of secondary equity markets have real economic value to the firms. The paper then argues that public policy can have a positive impact on the effectiveness of equity markets in delivering governance services through enhancing market liquidity. It examines the impact on market liquidity of two significant U.S. Securities and Exchange Commission (SEC) regulatory reforms applied to The Nasdaq Stock Market: SEC’s ‘trade reporting’ rules of 1992, and SEC’s “order handling” reforms of 1997. The paper concludes that public policies that increase market transparency and efficiency -- such as “trade reporting” requirements and better “order handling” rules -- promote the effectiveness of the secondary equity markets in delivering corporate governance through increased market liquidity.http://deepblue.lib.umich.edu/bitstream/2027.42/57263/1/wp883 .pd

Segmentation and Time-of-Day Patterns in Foreign Exchange Markets

This paper sheds light on a puzzling pattern in foreign exchange markets: Domestic currencies appreciate (depreciate) systematically during foreign (domestic) working hours. These time-of-day patterns are statistically and economically highly significant. They pervasively persist across many years, even after accounting for calendar effects. This phenomenon is difficult to reconcile with the random walk and market efficiency hypothesis. Microstructural and behavioural explanations suggest that the main raison d'etre is a domestic currency bias coupled with market segmentation. The prevalence of domestic (foreign) traders demanding the counterpart currency during domestic (foreign) working hours implies a cyclical net positive (negative) imbalance in dealers' inventory. In aggregate, this turns into sell-price (buy-price) pressure on the domestic currency during domestic (foreign) working hours.foreign exchange market, microstructure, behavioural finance, timeof-day patterns, market segmentation, calendar effects, inventory, asymmetric information, high-frequency data

Morphogenesis and propagation of complex cracks induced by thermal shocks

We study the genesis and the selective propagation of complex crack networks induced by thermal shock or drying of brittle materials. We use a quasi-static gradient damage model to perform large scale numerical simulations showing that the propagation of fully developed cracks follows Griffith criterion and depends only on the fracture toughness, while crack morphogenesis is driven by the material's internal length. Our numerical simulations feature networks of parallel cracks and selective arrest in two dimensions and hexagonal columnar joints in three dimensions, without any hypotheses on cracks geometry and are in good agreement with available experimental results

Related Securities, Allocation of Attention and Price Discovery: Evidence from NYSE-Listed Non-U.S. Stocks

In this paper we explore how the composition of a market maker's portfolio and allocation of attention across securities in the portfolio affect pricing. We analyze whether more attention devoted to similar securities enables a market maker to extract information relevant to a stock from order flow to related securities and consequently whether it leads to improved price discovery of the stock. We base on the recent literature on allocation of attention in share trading (Corwin and Coughenour, 2008; Boulatov et al., 2009) and define the prominence of a security as the proportion of its dollar volume in the total volume of the specialist portfolio it belongs to. Our empirical tests are focused on New York Stock Exchange specialists and the U.S. share in price discovery of 64 British and French companies cross-listed on the NYSE. We define related securities as stocks from the same country, the same region or other foreign stocks. We find strong evidence that an increase in the prominence of related stocks in the specialist portfolio leads to a higher U.S. share in price discovery of our sample stocks. We interpret our findings as evidence that concentrating market makers in similar stocks reduces information asymmetries and improves the information environment. To support our argument, we show that an increase in the prominence of other foreign stocks in the specialist portfolio significantly reduces the adverse selection component of the bid-ask spread.NYSE specialists, cross-listing, related stocks, price discovery

Emerging Market Sovereign Spreads, Global Financial Conditions and U.S. Macroeconomic News

This paper investigates the impact of global financial conditions, US macroeconomic news and domestic macroeconomic fundamentals on the evolution of EMBI spreads for a panel of 18 emerging market (EM) countries using daily data. To this end, we employ not only the conventional panel data estimation procedures but also the recently developed common correlated effects panel mean group method which incorporates heterogeneity by allowing country-specific coefficients whilst accounting for the effects of common global shocks such as contagion. The results strongly suggest that the long-run evolution of EMBI spreads depends on external factors such as changes in global liquidity conditions, risk appetite and crises contagion. Domestic macroeconomic fundamentals proxied by sovereign country ratings are also found to be important in explaining the spreads. The results from panel equilibrium correction models suggest that EMBI spreads respond substantially also to US macroeconomic news and changes in the Federal Reserve’s target interest rates. The magnitude and the sign of the effect of US macroeconomic news, however, crucially depend on the state of the US economy, such as the presence of an inflation dominance.Bond spreads, Emerging markets, Macroeconomic news

Stock Markets Liquidity, Corporate Governance and Small Firms

While the importance of equity markets as a vehicle for capital formation is well recognized, their role in providing economically valuable governance services, particularly to small and medium enterprises (SME), has not received much attention. The paper examines the role of public policy in promoting the governance role of secondary equity markets for the benefit of SMEs. The paper first outlines the mechanisms through which equity markets could promote good governance in small firms, showing that equity markets serve as a monitoring and control conduit for outsiders to enforce good governance at the firm. It then establishes that the ability of equity markets to deliver good governance is closely related to those markets’ liquidity, presenting further international evidence that firms supported by liquid equity markets realize improved economic performance. Thus, the governance services of secondary equity markets have real economic value to the firms. The paper then argues that public policy can have a positive impact on the effectiveness of equity markets in delivering governance services through enhancing market liquidity. It examines the impact on market liquidity of two significant U.S. Securities and Exchange Commission (SEC) regulatory reforms applied to The Nasdaq Stock Market: SEC’s ‘trade reporting’ rules of 1992, and SEC’s “order handling” reforms of 1997. The paper concludes that public policies that increase market transparency and efficiency—such as “trade reporting” requirements and better “order handling” rules—promote the effectiveness of the secondary equity markets in delivering corporate governance through increased market liquidity.Governance, Stock Markets and Liquidity

Multiple Testing Techniques in Growth Econometrics

This paper discusses two longstanding questions in growth econometrics which involve multiple hypothesis testing. In cross sectional GDP growth regressions many variables are simultaneously tested for significance. Similarly, when investigating pairwise convergence of output for $n$ countries, $n(n-1)/2$ tests are performed. We propose to control the false discovery rate (FDR) so as not to erroneously declare variables significant in these multiple testing situations only because of the large number of tests performed. Doing so, we provide a simple new way to robustly select variables in economic growth models. We find that few other variables beyond the initial GDP level are needed to explain growth. We also show that convergence of per capita output using a time series definition with the necessary condition of no unit root in the log per-capita output gap of two economies does not appear to holdGrowth Empirics; Multiple Testing; Convergence; Bootstrap

The Nontradable Share Reform in the Chinese Stock Market

Nontradable shares (NTS) are an unparalleled feature of the ownership structure of Chinese listed companies and represented a major hurdle to domestic financial market development. After some failed attempts, in 2005 the Chinese authorities have launched a structural reform program aiming at eliminating NTS. In this paper, we evaluate the stock price effects of the actual implementation of this reform in 368 firms. The NTS reform generated a statistically significant 8 percent positive abnormal return over the event window, adjusting prices for the compensation requested by tradable shareholders. Results are consistent with the expectation of improved economic fundamentals such as better corporate governance and enhanced liquidity.Chinese Equity Market, Financial Market Development, Split-Share Structure