https://www.post-gazette.com/business/businessnews/2009/05/11/cost-of-first-class-mail-jumps-2-pennies-today/stories/200905110157
Starting today, the cost of sending a piece of first-class mail jumps two pennies to 44 cents.
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https://www.usps.com/ship/first-class-mail.htm
First-Class Mail is a fast, low-cost way to send envelopes and postcards. See First-Class Mail and Forever stamp prices for a letter and postcard.
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https://fee.org/articles/first-class-mail-third-class-competition/
Robert A. Collinge and Ronald M. Ayers are Associate Professors of Economics at the University of Texas at San Antonio.
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