RT Journal Article T1 Advertising efficiency and profitability: Evidence from the pharmaceutical industry A1 Rahman, M. A1 Rodríguez-Serrano, M. Ángeles A1 Lambkin, M. K1 B2BResource-based view (RBV) K1 Direct to end-user (DTE) advertising K1 Advertising efficiency K1 Profitability K1 Data envelopment analysis (DEA) AB B2B firms spend considerable sums of money on promotional activities to promote their products and to build brand equity. An increasing proportion of this spending is being devoted to direct to end-user (DTE) advertising in an effort to pull end-users towards their products as a complement to their push promotional activities. This is particularly true for US-based pharmaceutical firms following the deregulation of DTE advertising. This trend suggests the necessity to investigate how efficiently DTE advertising expenditure is being managed, and to ascertain whether the level of efficiency has any impact on profitability. This study examined the level of DTE advertising efficiency for a sample of US-based pharmaceutical firms and went on to investigate the impact of the efficiency level on firm profitability. The findings of the study demonstrate that DTE advertising efficiency does vary between firms and, furthermore, that the higher the level of efficiency, the better is firm profitability. These results are robust to alternative measures of firm profitability, specifically, return on assets (ROA), return on equity (ROE), gross profit margin (GPM) and net profit margin (NPM). PB Elsevier YR 2020 FD 2020 LK https://hdl.handle.net/10433/25682 UL https://hdl.handle.net/10433/25682 LA en NO Rahman, M., Rodríguez-Serrano, M. Á., & Lambkin, M. (2020). Advertising efficiency and profitability: evidence from the pharmaceutical industry. Industrial Marketing Management, 89, 619-629 NO Universidad Pablo de Olavide. Departamento de Organización de Empresas y Marketing DS RIO RD May 9, 2026