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• Impacts of export quality on economic progress are examined. • The role of economic complexity for economic growth is investigated. • 28 OECD country's data is utilized from 1990 to 2019. • Export quality and economic complexity induce sustainable growth. • Institutional quality is a significant determinant for economic growth. It is important to unearth the role of structural change factors for sustainable growth in developed economies. Economic complexity, export product quality, and institutional indicators represent the overall structural change and transformation in an economy. This paper probed the influence of export product quality and economics of complexity on economic growth for 28 OECD (Organization for Economic Co-operation and Development) countries using the data from 1990 to 2019. In doing so, the study employs three-panel data econometric models to investigate the role of economic complexity, export quality, and institutional quality on economic development. The paper performs the empirical tests, including the cross-sectional related dependency methods and cointegration techniques. As per the results emerging from fully modified OLS (FMOLS) and dynamic OLS (DOLS) estimation, export quality and financial development positively and significantly strongly impact growth in the long run. The empirical conclusions report detailed discussion on sustainable growth and discuss novel implications concerning product quality and institutional performance. The conclusions stress the practical implications for sustainable economic growth of OECD economies. [ABSTRACT FROM AUTHOR]

• China implemented the heavy industry priority development strategy rather than the comparative advantage development strategy in the early years of new China. • A dynamic optimization model including the labor-intensive goods sector, the capital-intensive goods sector, and the final goods sector is constructed to study the rationality of the heavy industry priority development strategy. • The relationship between the total social output per capita and the share of heavy industry capital stock is inverted U-shape. • Heavy industry, as basic industry, provides the necessary material conditions for the subsequent comparative advantage development strategy. Based on the objective fact that new China had a weak industrial base during the planned economy period and the policies implemented, this paper constructs a dynamic optimization model that includes the labor-intensive goods sector, the capital-intensive goods sector, and the final goods sector. The basic conclusion of the theoretical model is that there is an inverted-U relationship between total social output per capita and the share of heavy industry capital stock on the optimal dynamic path of capital accumulation with government intervention, i.e., the relationship is positive until a specific threshold is reached, beyond which it becomes negative. The results of the benchmark regressions and endogeneity tests confirm the inverted-U relationship, although the threshold share of heavy industry capital stock differs among the empirical models. [ABSTRACT FROM AUTHOR]