The role of the market maker on market’s stability in the emerging stock exchanges Amman Stock Exchange as a model

Abstract

in this research we aim to study the effect of financial leverage on the firms efficiency according to the traditional financial index Rate of Return on Assets ROA.by applying them to a sample of industrial firms in Ghardaia region consisting of 12 companies during the period from 2010 to 2015, To determine the impact of debt ratio, ratio of debt to equity, firm size and growth rate on the rate of return on assets, depending on the SPSS statistical program. The most important findings of the study There is a statistically significant inverse relation between the debt ratio and the rate of return on assets, And a low positive correlation between the ratio of debt to equity and return on assets, firms should therefore prefer internal finance to external financing to increase return