Abstract
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.
JEL. Q54, H27, E31.
References
Cinca, C., Molinero, C., & Larraz, G. (2005) Country and size effects in financial ratios: A European perspective. Global Finance Journal. 16. 26-47. doi: 10.1016/j.gfj.2015.05.003
Eriotis, N. (2007). How firm characteristics affect capital structure: an empirical study. Managerial Finance. 33 (5), 321- 331. doi: 10.1108/03074351111113315
Graham, R., & Frankenberger, K. (2000). The contribution of changes in advertising expenditures to earnings and market values, Journal of Business Research, 50, 149–155. doi: 10.1080/00014788.2015.1033848
Komonen, K. (2002). A cost model of industrial maintenance for profitability analysis and benchmarking, Production Economics, 79, 82-105. doi:10.1016/0167-188X(91)90032-W
Loeb, P.D. (1983). Further evidence of the determinants of industrial research and development using single and simultaneous equation models. Empirical Economics, 8(3), 203-213. doi: 10.1007/BF01969344
Sadraei A., & Zabihidan M, (2012), Survey Effects of R&D on Firms Operations in Iran Factories, Journal of Economic Rahbord, 1(3), 93-118. (In Farsi)
Verbeek, A., & Debackere, K. (2006). Patent evolution in relation to public/ Private R&D investment and corporate profitability: Evidence from the United States. Jointly Published by Akademiai Kiado, Budapest and Springer, Dordrecht, 66(2). 279- 294.
