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Andrew M. Dresner's avatar

Thank you for the comment. I don't get enough of these!

The reason I did this is because of the way PayPal reports at the product level. The only metric they provide on PayPal wallet is total GPV, which means I need to estimate transactions to calculate engagement. (Branded Wallet GPV/Est. Wallet Txs = TPA ex PSP)

I estimated $90 per transaction for the 2023 FY data based on other metrics in the public domain. So: 2023 GPV/$90 = Est. Transactions. But the 2024 GPV number represents nominal GPV growth not real GPV growth (i.e., it didn't adjust for inflation). The easiest way to make that adjustment was to apply 2.9% CPI to the average ticket.

If inflation is accurately measured by CPI then a nominal level of GPV overstate transactions unless we inflate the average ticket as well -- so in my methodology both numerator and denominator are inflation adjusted. Otherwise, numerator is inflated but denominator is not.

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Connor Cochran's avatar

Andy, awesome analysis. I’m curious on the PayPal engagement if your TPA estimates also tie out with the number of transactions disclosed by the company adjusted to remove PSP? I estimate about 15.1 billion non-PSP transactions (26.3 bn x ratio of TPA ex PSP versus TPA.

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