@article{paperid:1036244, author = {Nassirzadeh, Farzaneh and Saei, Mohammad Javad and Salehi, Mahdi and Haddad, Ali}, title = {A Study of the Stickiness of Cost of Goods Sold and Operating Costs to Changes in Sales Level in Iran}, journal = {Studies in Business and Economics}, year = {2013}, volume = {8}, number = {2}, month = {August}, issn = {1842-4120}, pages = {79--89}, numpages = {10}, keywords = {costs sticky; cost of goods sold; general; administrative and selling costs}, }