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This study aims to empirically investigate the impact of foreign technology transfer and R&D on total factor productivity and labour productivity of Indian firms. The results of production function analysis indicate that foreign technology plays a significant role in output growth. The results of growth the accounting approach also suggest a critical role of foreign technology in the productivity growth of firms. Interestingly, our findings indicate that while R&D does not significantly contribute to productivity growth, it shares a complementary relationship with foreign technology and drives a firm's productivity. Our findings indicate that firms that engage in R&D and foreign technology transfer have a competitive edge in terms of productivity and output, but the role of R&D intensity cannot be established.

AbstractThis study tests for the presence of nonlinear dependence and deterministic chaos in the rate of returns series for six Indian stock market indices. The overall result of our analysis suggests that the returns series do not follow a random walk process. Rather it appears that the daily increments in stock returns are serially correlated and the estimated Hurst exponents are indicative of marginal persistence in equity returns. Result from the test of independence on filtered residuals suggests that the existence of nonlinear dependence, at least to some extent, can be attributed to the presence of conditional heteroskedasticity. It appears, therefore, that low order GARCH‐type models can adequately explain some, but not all, of the observed nonlinear dependence in the data. Further, we find very little evidence to support the proposition that returns are generated by a chaotic system. Only in two out of six cases the results are supportive of sensitive dependence on initial condition, which indicates chaos. Presence of chaos in market indices implies that profitable nonlinearity based trading rules may exist at least in the short‐run. Finally, fairly contrary to the findings of previous studies, rejection of random walk hypothesis offers some possibility of returns predictability.