The main purpose of this paper is to examine the relationship between financing variables, the ratio of research and development costs to operating profit and financial crisis in companies admitted to the Tehran Stock Exchange. The statistical population of the research is accepted by the companies in the 5 years period from 1391 to 1395 in the Tehran Stock Exchange and the research samples are from 181 companies. The research data were compiled through the new software and financial statements of the companies. In this research, multivariate linear regression model was used to test the hypotheses. The statistical method used in this paper is the panel data method. The results of the research indicate that the ratio of financial leverage to the ratio of R & D investment to operating profit is also affected by the ratio of R & D to operating profit on the criteria of the corporate financial crisis based on Springerty model, and the ratio of the cost of research and Operational development is effective on the financial crisis criteria of the company based on the Zimsky model, as well as the impact of the cost of research and development on the operating profit on the financial crisis criteria of the company based on the Altman model of 1983 and 1986 and the modified Kurdistan model was not approved.
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