Prior to joining Auckland University of Technology, Ricky served as an associate professor and associate head of the Department of Management and Marketing at the Hong Kong Polytechnic University. Ricky is an internationally recognised researcher in green consumption. According to a study published in Australasian Marketing Journal in 2017, he has been ranked as the world’s second and third most influential author in green consumer research by ‘total articles’ and ‘total citations’, respectively. Ricky has also been included in Stanford University's List of the Top 2% Scientists in the World by Citations since 2020.