In this paper, we focus on three locations in the Asia-Pacific region—Hong Kong, Shenzhen, and Singapore—to analyse the impact of variations in research and development (R&D) spending on total factor productivity (TFP) growth. In each of the three cases, we compare and contrast the role of public and private R&D in boosting TFP growth as well as the pattern of causality involving public and private R&D and the capacity of both types of R&D to generate economic spillovers. Our results show that the impact of both public and private R&D varies across the three cases, with significant but limited outcomes for TFP growth in the case of Hong Kong, no significant growth in Shenzhen, but strong and positively significant growth in Singapore. B.V.

This study dynamically examines the impact of foreign direct investment and other explanatory variables on economic growth and carbon emissions, and tests the validity of pollution haven hypothesis (PHH) and environmental Kuznets curve (EKC) hypothesis in China, India, and Singapore from 1980 to 2020. The results of Westerlund’s (Oxford Bulletin of Economics and Statistics, 69(6):709–748, 2007) panel cointegration test illustrate long-run equilibrium relationships among the proposed set of panel variables in the model. The estimated parameters of the AMG, CCEMG, and MG estimators in each of the specified models show that renewable and non-renewable energy consumption, foreign direct investment, and capital accumulation all have significant and progressive effects on economic growth. However, the labor force is insignificant and carbon emissions have a significant negative impact on economic growth. Non-renewable energy consumption significantly stimulates and renewable energy consumption significantly reduces carbon emissions. Moreover, the moderating role of non-renewable energy in the impact of foreign direct investment on carbon emissions is significantly positive, thus validating the PHH. The moderating role of renewable energy consumption in the impact of foreign direct investment on carbon emissions is significantly negative. The study’s analysis also clearly validated the inverted U-shaped EKC hypothesis in China, India, and Singapore. Policymakers in emerging economies must prioritize the maturity of renewable energy, which not only increases productivity but also protects the environment from damage by reducing carbon dioxide emissions. The governments of China, India, and Singapore should initiate direct foreign inflows based on advanced and clean technologies to avoid environmental degradation and drive higher growth in these economies. © 2022, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.