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This paper aims to report the findings from a longitudinal study of Indian business groups responding to the pro-market reforms that the government had initiated. It explores their diversification choices at the group level and the group performance consequences of these choices during a period of institutional changes (1990-2008).

Ordinary least squares regressions were used to analyze data spanning the 1988-2008 study period for 98 Indian business groups.

Results show that business groups that focused their portfolios in the early stages of institutional reforms tended to perform worse than their counterparts that did not do so. However, as market reforms became more established, business groups that made the transition from an unfocused to a more focused portfolio experienced superior performance consequences.

The findings underscore the temporal dimension of focusing and suggest that both changing strategy by refocusing business portfolio too early or waiting too long to refocus can hurt performance outcomes.

We combine insights from the strategic management and international business literatures in order to explore the moderating role of business group characteristics on the link between innovation and internationalization in the context of the pharmaceutical sector in India. We test our three hypotheses on a sample of 219 Indian pharmaceutical firms affiliated with business groups, over a five-year period (2005–2010) in a panel of 1,096 firm-year observations. Results indicate that, contrary to our contention, research expenditure is negatively associated with export intensity, implying that firms in the Indian pharmaceutical sector may face a trade-off between investing in innovation and international expansion. As expected, business group characteristics significantly impact the strength of the relationship between innovation and internationalization. Theoretical and practitioner implications are discussed.