Purpose: The purpose of this paper is to assess the efficiency of agricultural production in South Africa from 1970 to 2014, using an integrated two-stage fuzzy approach. Design/methodology/approach: Fuzzy technique for order preference by similarity to ideal solution is used to assess the...

Purpose: This paper aims to investigate the long-term impact of shareholder activism on Brazilian listed companies. Design/methodology/approach: This study uses a sample of 194 companies in 2010, 2012 and 2014 and a two-stage data envelopment analysis to generate an efficiency score based on...

Purpose: This paper aims to investigate the production of sugar cane ethanol in Brazil for the time period 1983-2016, separating the data by geographical location. Design/methodology/approach: For this purpose, the authors use techniques based on the concept of fractional integration. Findings:...