As part of ISEAL's series of webinars on latest research on standards’ impacts, this webinar explores the differences standards make, using research from the banana, cocoa, coffee, tea and avocado sectors. Making international supply chains more sustainable is one of the ways to boost rural development for smallholders. As an applied scientific research institute it is LEI’s goal to conduct rigorous impact evaluations which provide insights to customers. One very crucial question customers, and society at large face is: what differences do standards make? This webinar, held on 7th April 2016 presents evidence from a range of research and evaluation studies that have been conducted in the banana, cocoa, coffee, tea and avocado supply chains to answer this question. The team from LEI also share their insights on the methodology and design principles that they think are needed to guide impact evaluations in this field of work.