摘要：The pressure of society for firms to adopt socially responsible behavior is evident. Yet, Corporate Social Responsibility (CSR) needs an economic justification. In response to this, there exists a comprehensive literature that analyzes the possible relation between social and business financial performance. During the last decade, the literature has been heading toward the carrying out of dynamic studies as researches find that the relationship between social and financial performance is not static. The purpose of this work is to analyze the relevance for the financial performance of Spanish listed firms of maintaining their responsible behavior. To do so, we carry out a comparison between two analyses—one cross-sectional, and the other longitudinal—to be able to conclude whether or not adopting responsible criteria makes a difference in business financial performance in the short and long-term. Some of the results obtained in the cross-sectional study are consolidated in the long-term study. In this sense, responsible firms exhibit a higher systematic risk and have greater size. As a conclusion, be responsible does not mean less stock profitability or a lower business result. It certainly contributes to firms continuing to voluntarily incorporate good corporate social responsibility practices into their business models. What is more, these results support the governmental policies and initiatives that bolster corporate social responsibility.
关键词：corporate social responsibility; social performance; financial performance; sustainable companies; sustainable index
