Dr. David Iheke OKORIE is an Associate Professor of Economics at the New Zealand University of Waikato Institute (NZUWI); based in Hangzhou, China. Dr. Okorie is also a Senior Research Fellow at the Center for the Study of the Economies of Africa (CSEA), Nigeria. Dr. Okorie has worked as a Postdoctoral Research Fellow at the School of Management, Xiamen University, China. He also served as a Graduate Teaching Assistant at the Wang Yanan Institute for Studies in Economics (WISE) and the School of Economics (SOE), Xiamen University, China. Dr. Okorie has a doctorate in Economics (Finance major), a master's degree in Econometrics, and a bachelor's degree in Economics. He completed his graduate studies at Xiamen University (XMU), China and completed his undergraduate studies at the University of Nigeria Nsukka (UNN), Nigeria. Dr. Okorie has introduced several econometric models like asymmetric & exogenous conditional heteroscedasticity models, asymmetric & exogenous conditional correlation models, generalized contemporaneous error variance decomposition models, energy-efficient production functions, etc. Dr. Okorie also built the static and dynamic model versions of the Energy & Environment Integrated General Equilibrium (EEIGE) model. He also developed the Beta Limits Strategy (BLS) model; a Game Theory optimal model for solving the finite sequential Game of Strokes (GOS). Dr. Okorie won the top-cited paper award for his 2021 publication in Finance Research Letters, Best conference paper awards during the 2020 International Conference on Energy  Finance (ICEF), etc. Generally, Dr. Okorie has published award-winning articles in top-ranking journals like Energy Economics, Finance Research Letters, Financial Innovations, Energy, Journal of Cleaner Productions, North American Journal of Economics and Finance, Structural Change & Economic Dynamics, etc. His research studies focus on Sustainable Climate Finance, Renewable Energy Transition, Financial Econometrics, and General Equilibrium Modelling. Dr. Okorie teaches Econometrics, Microeconomics, and other range of courses/papers in Economics.