Effect of compressive loads on the tensile strength of concrete at high strain rates

This paper describes the behaviour of concrete subjected to tensile loads at high strain rates with and without compressive load histories. The tests, carried out at the laboratory of building materials of the Swiss Federal Institute of Technology, Zurich, show a considerable deterioration of the tensile strength due to initially applied compressive loads

Broker Network Connectivity and the Cross-Section of Expected Stock Returns

We examine the relationship between broker network connectivity and stock returns in an order-driven market. Considering all stocks traded in Borsa Istanbul between January 2006 and November 2015, we estimate the monthly density, reciprocity and average weighted clustering coefficient as proxies for the broker network connectivity. Our firm-level cross-sectional regressions indicate a negative and significant predictive relationship between connectivity and one-month ahead stock returns. Our analyses also show that stocks in the lowest connectivity quintile earn 1.0% - 1.6% monthly return premiums. The connectivity premium is stronger in terms of both economic and statistical significance for small size stocks

Critical Media Industry Studies: A Research Approach

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/73139/1/j.1753-9137.2009.01037.x.pd

The impact of institutions, ownership structure, business angels, venture capital and lead managers on IPO firm underpricing across North Africa

This paper examines the determinants of IPO underpricing in a unique and comprehensive, sample of 86 IPO firms from across North Africa between 2000 and 2013. The findings suggest that, underpricing is used as a mechanism by which to stimulate excess demand (subscription) for newly, issued stock in order to create a relatively small but highly dispersed, and thus disempowered, minority shareholder base. Domestic venture capital and to lesser extend business angels are, associated with elevated underpricing while the reputational impact from foreign venture capital and, lead managers infers lower underpricing. In terms of institutions and state-level corruption control, policies are most closely linked to substantial reductions in underpricing

Rationale behind IPO underpricing: evidence from Asian REIT IPOs

This article examines the rationale behind IPO underpricing using a sample of REIT IPOs in Asia. Although the IPOs registered an average initial return of 3.08%, the issuers were able to sell the IPO shares above their fundamental values by timing the listings in periods when existing REIT stocks are traded at a premium to their net asset values (NAV). An IPO could therefore be underpriced and yet produce a net gain for the issuer. The issuers’ net gain from IPO is, however, negatively related to long‐run performance of REIT IPOs

Explaining turn of the year order flow imbalance

The paper provides evidence of a turn of the year effect in the order flow imbalance of both retail and institutional investors. In December there is net selling pressure which is reversed in January. We examine high frequency intraday order flow information and find that the changes in order flow imbalance between December and January are related to firm risk factors and characteristics. We find that retail order flow imbalances are associated with a wide range of risk characteristics including beta, illiquidity and unsystematic risk. Imbalances in institutional order flow are associated with only a small number of risk variables. We show that these order flow changes are important because risk premiums are elevated in January. Our results are robust to the effects of decimalization

Impact of idiosyncratic volatility on stock returns: A cross-sectional study

This paper proposes a new approach to estimate the idiosyncratic volatility premium. In contrast to the popular two-pass regression method, this approach relies on a novel GMM-type estimation procedure that uses only a single cross-section of return observations to obtain consistent estimates. Also, it enables a comparison of idiosyncratic volatility premia estimated using stock returns with different holding periods. The approach is empirically illustrated by applying it to daily, weekly, monthly, quarterly, and annual US stock return data over the course of 2000–2011. The results suggest that the idiosyncratic volatility premium tends to be positive on daily return data, but negative on monthly, quarterly, and annual data. They also indicate the presence of a January effect.NOTICE: this is the author’s version of a work that was accepted for publication in Journal of Banking & Finance. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Banking & Finance, [37, 8, (2013)] DOI:10.1016/j.jbankfin.2013.02.034</p