There exists a large research on whether Corporate Social Responsibility (CSR) has any impact on firm performance, which the empirical researches produced mixed results. Since the CSR practices are maturing, constantly proceeding, developing, and gradually evolving, therefore it is necessary to discuss the current updated information. To broaden the result, this particular study used Thai Public Listed Companies (PLCs) in the Stock Exchange of Thailand (SET) as a main sample, and takes an opportunity of applying both quantitative and qualitative ...