The Pizza Principle, or the Pizza-Subway Connection, in New York City, is a humorous but generally historically accurate "economic law" proposed by native New Yorker Eric M.
"[1] In 1985, the late writer, historian, and film critic George Fasel learned of the correlation and wrote about it in an op-ed for The New York Times.
[10] In 2014, Jared Lander, a professional statistician and adjunct professor at Columbia University, conducted a study of pizza slice prices within New York City and concluded that the Pizza Principle still held true.
[12][13][14][15] In 2019, The Wall Street Journal noted that, due to a combination of a decrease in the fare bonus for a subway ride rather than an increase in the overall fare ($2.75 at the time) and the increased variability of the cost of pizza in New York City, the Pizza Principle may no longer be accurate.
[16] Inflation after the COVID-19 pandemic, plus a decision by the MTA to freeze fares, led to some evidence of a divergence in 2022.