I'm going to slightly disagree with "it's sad" part; understanding it's unfortunate on local / personal scale, food getting cheaper is what allows all of us here at hacker news to do something else rather than cultivate food as primary preoccupation of majority of population :-/
I don't think food has gotten that much cheaper in the last 50 years. Don't believe the fake CPI. Just take the average hourly earnings and divide it by something like the big mac index or a basket of food commodities.
I did that. BLS CPI components which don't change much are available from 1988, some of them even longer.
In the 35 years since 1988:
- dairy has gotten 20% cheaper in terms of wages
- bakery/cereal products have stayed roughly flat vs wages (cheaper since the 90s but more expensive since the 70s)
- fruit/veg products have gotten 5% cheaper in terms of wages (though the same level as in the late 70s/early 80s)
- rice/pasta/cornmeal has gotten 15% cheaper in terms of wages
Caveat: Over time frames this long, average hourly wages don't mean like for like hourly wages for the same job... the number of low-paid "deliveroo driver/amazon delivery guy" low paid part time jobs has increased, pushing averages down. (I.e. things have gotten more expensive as measured by minimum wages, but things have gotten much cheaper as measured by the wages of a skilled professional.)
I ran the numbers average wages/big mac index.
And it was showing a decrease in cost untill about 2000 but ever since then the cost of the big mac index has increased in the US, relative to average wages. Not that we should be eating big macs, but it's supposed to take a variety of inputs into account.
Sure, so if I ignore the fake CPI, how do I do that? I can only easily find price of milk from 1995, not earlier; bread from 1980, somewhat dubious sources.
I'm assuming in most countries also, subsidies, formal/official cartels, price controls and other policy instruments would make it very hard to compare apples to apples.
If you don’t think the cost of farming has gone down in 100 years because of better tools, equipment, automation, irrigation, etc, I’m very surprised. You don’t need statistics. Just look at farm implements from 100 years ago.
It's less that it's got cheaper and more that people spend a smaller % of their income on food these days. In terms of personal budgeting it's Amdahl's law at play.