The provided report uses the six thinking hats tool to analyze the external environment's impact on Wesfarmers' performance. It considers factors such as government regulatory, economic policy, consumer behavior, technology, legal, and environmental changes. The analysis is done using the six thinking hats methodology, which involves different types of thinking (white hat, red hat, black hat, yellow hat, green hat, and blue hat) to identify and tackle challenges and improve performance. The report provides a detailed analysis of the external environment's impact on Wesfarmers' performance, using real-world examples from the company's 2016 sustainability report.