Fig. 3From: The role of R&D and economic policy uncertainty in Sri Lanka’s economic growthTFP and R&D intensity trends. The figure shows the movements of TFP and R&D intensity indicators over time. \(lnA\), \(lnRD/L\), and \(lnPATENT/L\) denote, respectively, the logarithms of TFP, real R&D intensity, and patent intensity. The sample period is from 1980 to 2018Back to article page