Abstract
In this article, we include data on historical and estimated market shares of two markets. In particular, we include annual data on the market shares of the Japanese beer market (1963–2000) and biannual data on the market shares of the mobile phones market in Greece (1998–2007). In addition, we estimate monthly data on market shares for both markets. We show how this data can be used to derive firms’ utility functions and their competitive roles.
Highlights
In this article, we include data on historical and estimated market shares of two markets
We include a historical series of market shares for two markets
The data on the Japanese beer market only regards the three main beer producers, whereas the residual market share is attributed to the “outside option”
Summary
We analyze the data using a nonoautonomous integrable Lotka Volterra model to: (i) derive the utility functions of the firms, (ii) estimate their market shares, and (iii) determine firms’ competitive roles. Accurate and reliable historical data on market shares is only seldom available These historical series (38 and 19 data, respectively) are very valuable because they cover a relatively long time horizon and they refer to markets that are widely recognized as relevant. We include a historical series of market shares for two markets (see Fig. 1 and refer to Supplementary materials). We present the market shares of the beer market in Japan and the mobile phone market in Greece. For the former, we have annual observations from 1963 to 2000. We estimate infra-annual data of market shares for both market (see Fig. 2 and refer to Supplementary materials)
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