Abstract
This article investigates the mean and variance spillovers between patent applications and total factor productivity (TFP) in Japan. First, we find a stationary cointegrating relationship between patent applications and TFP in the long run. This result suggests an increase in patent applications directly leads to an increase in innovation. Second, we also obtain evidence of significant bidirectional causality in mean and variance between patent applications and TFP. These finding indicates that there exists a bidirectional mean and volatility spillover effects between patents and innovations in the Japanese context. The results of our investigation can assist policymakers in taking decisions regarding the regulation of Japan’s patenting system.
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