Effects of R&D Costs on Profit of Producers of Oil Productions in Tehran Stock Exchange

Vida Varahrami ()
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Vida Varahrami: Shahid Beheshti University, Iran.

Journal of Social and Administrative Sciences, 2015, vol. 2, issue 3, 132-134

Abstract: In this paper, we survey effects of firm’ size, firm’ age, capital to endowment, debt to endowment, advertisement cost and R&D cost on profit of producers of oil productions in Tehran stock exchange. We use from data of period 2004-2014 and estimate model with panel method. Results of estimation reveal that capital to endowment, age and R&D cost have positive effect on these firm’s profit and firm’ size, debt to endowment and advertisement cost have negative effect on our firm’s profit.

Keywords: R&D Cost; Oil Productions; Profit; Advertisement Cost. (search for similar items in EconPapers)
JEL-codes: E31 H27 Q54 (search for similar items in EconPapers)
Date: 2015
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