African Journal of
Business Management

  • Abbreviation: Afr. J. Bus. Manage.
  • Language: English
  • ISSN: 1993-8233
  • DOI: 10.5897/AJBM
  • Start Year: 2007
  • Published Articles: 4179

Full Length Research Paper

Conceptual model for relationship between earning quality and cost of capital

Hashem Nikoomaram, Hamidreza Vakili Fard, Fraydoon Rahnamay Roodposhti, Ghodratollah Talebnia and Peyman Amini*
Department of Accounting, Science and Research Branch, Islamic Azad University, Tehran, Iran.  
Email: [email protected]

  •  Accepted: 25 July 2011
  •  Published: 30 September 2011


In this study the relationships between cost of capital and six dimensions of earning quality are evaluated. Furthermore, we provide a conceptual model based on these relationships. Six dimensions of earning quality based on accounting information include, “Accrual quality ", " Earning variability", "Optional accrual items", "Common factor", "Earning predictability" and "Earning smoothness". Findings of this paper show that, common factor has no effect on cost of capital. Furthermore, optional accrual items have unexpected relation with cost of capital. Among other factors, "Earning quality" and “Accrual quality " had the highest impact on cost of capital. Finally, a conceptual model is presented using structural equations such that, only two indices of quality of accrual items and earning smoothness and two indices of operating environment (size and return of assets) are presented in the final model.


Key words: Earning quality, cost of capital, conceptual model; accrual quality; smoothness.