https://www.economiesuisse.ch/de/schwerpunkte/wirtschaftsmonitor-umfrage-zum-ruf-der-schweizer-wirtschaft
https://www.brookings.edu/blog/order-from-chaos/2022/02/18/now-is-not-the-time-to-limit-u-s-natural-gas-exports/?utm_campaign=Brookings%20Brief&utm_medium=email&utm_content=204506322&utm_source=hs_email
https://www.brookings.edu/blog/future-development/2018/04/03/the-middle-productivity-trap-why-are-less-productive-firms-systematically-lagging-behind/?utm_campaign=Brookings%20Brief&utm_source=hs_email&utm_medium=email&utm_content=61867197