Maybe we should think of each study as a data point? With enough studies, perhaps we'll get an idea of how much it varies.

Does anyone collect them?

▲

drob518 5 hours ago | parent [-]

To what end? It varies a lot. Between 0% and 100%+ of the cost could be passed onto the consumer (100%+ when every distribution tier passes along what came to it and then marked it up). Maybe you can create a statistical distribution with mean/median and standard deviation, but that tells you nothing about what might happen when you next institute another tariff.

	▲	lrasinen 5 hours ago \| parent [-]
		Most of economics is educated guessing, and having more data (hopefully) leads to better guesses. With this study there's plenty of leads to follow. Does the ABV have an impact? What about the base price? France vs Italy?