Abstract Many financial instruments are designed with embedded leverage, such as options and leveraged exchange-traded funds (ETFs). Embedded leverage alleviates investors’ constraints, and, therefore, we hypothesize that lowers required returns. Consistent this hypothesis, find empirically ETFs provide significant amounts of leverage; increases return volatility in proportion to the higher is ...

The purpose of this paper is examining the impact of financial leverage as a mediation variable on the relationship between ownership concentration and financial corporate performance. To test the hypotheses, multiple regression analysis is used. The statistical population of this research is all listed companies in Tehran Stock Exchange. However, data were available only for 60 companies durin...

COX-2 inhibitory activities of some 1,4-dihydropyridine and 5-oxo-1,4,5,6,7,8-hexahydroquinoline derivatives were modeled by quantitative structure-activity relationship (QSAR) using stepwise-multiple linear regression (SW-MLR) method. The built model was robust and predictive with correlation coefficient (R2) of 0.972 and 0.531 for training and test groups, respectively. The quality of the mod...

Due to the fact that assets are recorded at their historical value and they may include unrealized gains (losses), managers may manipulate earnings through the sale of these assets and provide financial information which is not accurate and reliable. The aim of this study is to investigate the relationship between income from asset sales, earnings change and leverage of companies listed on Tehr...

Large heterogeneity has prevented current capital structure research from explaining variations in firms’ capital structures to a satisfactory degree. We find that firms generally fall into two categories based on their capital structure policies. One category consists of larger firms that tend to pay dividends, and includes almost all zero-leverage firms in the sample. These firms tend to resp...

The sampling strategies in many randomized matrix algorithms are, either explicitly or implicitly, controlled by statistical quantities called leverage scores. We present four bounds for the sensitivity of leverage scores as well as an upper bound for the principal angles between two matrices. These bounds are expressed by considering two real m×n matrices of full column rank, A and B. Our boun...

Under the background that international economy is in great recession and new development pattern of domestic double circulation has gradually become a consensus macro-economy normal, this paper investigates 31 provinces cities' policies residents' leverage ratio recent ten years, analyzes direction extent industrial policy, fiscal policy monetary on by using stata, matlab other software. The q...