I first learned about tontine contracts as a child reading from Agatha Christie mysteries, like 4.50 From Paddington and The Pale Horse.
The US economy had about 6 million firms in 2017 (the most recent data).
When I started working as the Managing Editor of the Journal of Economic Perspectives back in 1986, making figures for academic articles was still relatively expensive.
Douglas Clement has an interview with Sandra Black in the Fall 2020 issue of For All, a publication of the Opportunity & Inclusive Growth Institute at the Minneapolis Federal Reserve.
The "middle-income trap" is the phenomenon that once an economy has made the big leap from being a lower-income country to being a middle-income country, then it may find it difficult (although not impossible) to make the next leap from being middle-income to high-income.
The main central banks have been discussing the idea of implementing a digital currency.
The US Department of Justice has filed an antitrust case against Google.