This paper tests the hypothesis that portfolio diversification can increase the threat of systemic financial risk. The paper provides first a theoretical rationale for the possibility that systemic risk may be increased by the proliferation of financial instruments that lead operators to hold...

Security prices in efficient markets reflect all relevant information. Past price formations and even fundamental analysis cannot guarantee abnormal returns consistently to any pre-identified strategy or market participant, be they novice or expert traders. There have been various studies done...

This paper examines the benefits of regionally and globally diversified portfolios from the perspective of investors holding domestic-only portfolios from different Asia-Pacific countries. Three groups of regional portfolio are constructed, with sorting based on relative strength ranking...

The International Accounting Standards Committee issued the the International Accounting Standard 19, Employee Benefits. The objective of IAS 19 is to is to prescribe the accounting and disclosure for employee benefits (that is, all forms of consideration given by an enterprise in exchange for...

The International Accounting Standards Committee issued the the International Accounting Standard 26 Accounting and Reporting by Retirement Benefit Plans. The objective of IAS 26 is to specify measurement and disclosure principles for the reports of retirement benefit plans. All plans should...

We find a positive association between short-selling and accruals during 1988-2003. Short arbitrage occurs primarily among firms in the top accrual decile, and firms with sufficiently high supply of loanable shares (proxied by institutional holdings). Consistent with limits to short arbitrage,...

We find a positive association between short-selling and accruals, and between short-selling and NOA, during 1988-2003. The accrual and NOA return anomalies are asymmetric. The absolute value of mean abnormal returns is larger for high-accrual firms than low-accrual firms on NASDAQ, but not on...

We test the Chen and Singal (2003) hypothesis that speculative short sellers add to the selling pressure on Mondays, and hence add to the weekend effect, by examining evidence from 60 market indices. We find strong evidence that, until about a decade ago, the actions of short sellers could...

We consider linearity testing in a general class of nonlinear time series model of order 1, involving a nonnegative nuisance parameter which (i) is not identified under the null hypothesis and (ii) gives the linear model when equal to zero. This paper studies the asymptotic distribution of the...

The asymptotic properties of the quasi-maximum likelihood estimator (QMLE) of vector autoregressive moving-average (VARMA) models are derived under the assumption that the errors are uncorrelated but not necessarily independent. Relaxing the independence assumption considerably extends the range...