Introduction: Technological innovation is one of the key indicators for economic growth and productivity. Recent studies show that R&D investment causes technological change. However. this relationship is not always obvious and seems to vary according to the level of economic development. https://www.trendingcustomes.shop/product-category/5-x-5/
Nonlinear Threshold Effect of Medium-High Technology Exports on Total Factor Productivity in the Selected Developing and developed Countries: Panel Smooth Transition Regression (PSTR) Model
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