This article doesn't mention a shakeout [0] effect. Shakeouts are typical in new industries, even when new entrants continue to come to market.. I also find t

This article doesn't mention a shakeout [0] effect. Shakeouts are typical in new industries, even when new entrants continue to come to market.. I also find the timeframe, blinkered to pre-2016 and post-2019 to be unnecessarily blinkered. This should be included in the introductory preamble. Pre-2016, the number of apps in both the iTunes [1] and Google Play [2] stored saw rapid growth. Post-2020, iTunes plateaued while Google Play rose by about 10% in 2020 before declining to 2018 levels in Q3 and Q4 2021. [0] https://en.wikipedia.org/wiki/Shakeout https://en.wikipedia.org/wiki/Shakeout [1] https://www.statista.com/statistics/268251/number-of-apps-in-the-itunes-app-store-since-2008/ https://www.statista.com/statistics/268251/number-of-apps-in... [2] https://www.statista.com/statistics/268251/number-of-apps-in-the-itunes-app-store-since-2008/ https://www.statista.com/statistics/268251/number-of-apps-in... It would be interesting if the article attempted to control for shakeout events, such as 'number of PDF readers', a perhaps low-'innovation' type of app, rather than total number of apps as a proxy for innovation. Edit: Here's a paper on shakeouts, if interested in reading beyond the brief Wikipedia article: https://homepages.rpi.edu/~simonk/pdf/siisp.pdf https://homepages.rpi.edu/~simonk/pdf/siisp.pdf