
Accessing CMIE data for the time-series of market shares and Herfindahl index for a given industry
For over 20 years, CMIE has computed `market shares' of the
companies who compete in a certain product. They have also computed the
Herfindahl index of concentration. This data is valuable in obtaining a
snapshot of what is happening in an industry. But more interesting,
this data goes back to 1990-91, and thus constitutes a valuable
historical series using which we can obtain insights into individual
industries and the economy.

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