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Due to worsening environmental conditions around the globe, firms have been investing a great deal of money in green technologies as a way of coping with the environmental crisis. This paper uses a unique data set based on the Korea Innovation Survey to examine the impact of green innovation on labor productivity, and the determinants of environmental activities in 2010. The empirical results show that green innovation intended for both firm and customer benefits has a positive effect on labor productivity. This finding means that firms need to implement firm‐oriented green innovation as well as customer‐oriented green innovation in order to increase their performance. Our findings also show that there are significant differences in aggregate green innovations depending on different firm sizes and industries. Specifically, large firms implement environmental activities more than small ones, and pollution‐intensive industries tend to invest more in activities related to environmental technology. Copyright © 2013 John Wiley & Sons, Ltd and ERP Environment.

Purpose This paper aims to explore the effect of social ties on the relationship between corporate social responsibility (CSR) and firm performance in Korea. Design/methodology/approach Social ties were measured from firm disclosures of 318 Korean firms from 2012 to 2015. Propensity score matching and regression analysis were used to investigate the moderating effects of social ties on the relationship between CSR and firm performance. Findings The result shows that social ties have more negative moderating effects on the relationship between CSR and firm performance in Chaebol firms than in non-Chaebol firms. Practical implications Firms need to enhance the monitoring of social ties within board members to assure the proper oversight of CSR. Originality/value This paper contributes to the CSR literature by providing empirical evidence of the negative aspects of social ties on the relationship between CSR and firm performance in Korea.

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