Pairach is currently a PhD candidate at the Logistics Systems Dynamics Group of Cardiff University. His awarded PhD research aims to explain relationships in tourism supply chain via lens of transaction cost economics using a statistical technique called structural equation model (SEM). He was awarded an MSc (distinction) in Logistics and Operations Management from Cardiff University in 2009. His studies in Cardiff have been fully supported by the Royal Thai Governments scholarship, which was awarded from a national competition. In 2005, he got a Bachelor of Economics (First-class honour) from Chiang Mai University (Thailand). Pairach has involved in a number of research projects in tourism economics and logistics as well as consultancy works to various organisations such as The World Bank and Thailand Ministry of Tourism and Sports. He is also an ad-hoc reviewer for several journals and conferences such as European Journal of Operational Research International Journal of Service Industry Management, Academy of Management Conference, and British Academy of Management Conference. His underlying research theme is an application of economics theories and techniques to logistics and supply chain management.