大多数人认为所有商业领域都有能力应对颠覆性竞争，但作者指出某些类别如电子邮件、广告基础设施等从未找到有效的竞争对策。这暗示了某些市场结构可能存在根本性弱点，无法通过传统竞争策略应对免费化浪潮。

Love, D., Allison, E. H., Asche, F., Belton, B., Cottrell, R. S., Froehlich, H. E., Gephart, J. A., Hicks, C., Little, D. C., Nussbaumer, E. M., da Silva, P. P., Poulain, F., Rubio, A., Stoll, J. S., Tlusty, M. F., Thorne-Lyman, A. L., Troell, M., & Zhang, W. (2020). Emerging COVID-19 impacts, responses, and lessons for building resilience in the seafood system [Preprint]. SocArXiv. https://doi.org/10.31235/osf.io/x8aew

Falato, A., Goldstein, I., & Hortaçsu, A. (2020). Financial Fragility in the COVID-19 Crisis: The Case of Investment Funds in Corporate Bond Markets (Working Paper No. 27559; Working Paper Series). National Bureau of Economic Research. https://doi.org/10.3386/w27559

How Europe can emerge stronger out of the coronavirus crisis. (n.d.). World Economic Forum. Retrieved 25 July 2020, from https://www.weforum.org/agenda/2020/07/resilient-european-economy/