"How do you know your tourism activity's overall impact is beneficial to a community if you aren't measuring it?" This week, Gary and Hannah discuss economic leakages and quantifying the impacts on local communities of tour operations with Ewan Cluckie, Founder of Thailand-based Tripseed. Socio-economic sustainability in tourism is an under-scrutinised topic, but Tripseed is confronting it head-on. The company recently published phase 1 of its deeply researched Economic Distribution Disclosure Initiative, a set of tools and metrics designed to "drive transparency and positive impact within the local economy”. Ewan discusses why economic leakage is "particularly pronounced" in Thailand, and research related to other ASEAN countries. So, what are these leakages, how do you measure and compare them - and where does the money go? And, how can leakages be assessed for suppliers further along the chain, whose data might be tricky to obtain? Ewan also provides a heads-up about the areas that this innovative tourism impact project in South East Asia will address next - and the interest it has garnered from university research institutes and large private sector organisations.