[georgefrowny]

GDP is a useless metric when so much of it basically wash trading.

It's always been a dodgy metric and susceptible to gaming. But now that money is less and less connected to useful value, it's almost a sick joke.

[carefree-bob]

GDP is a useful metric when we remember what it problems it was created to solve --e.g. in the Great Depression there was a concern of a decline of economic activity and a way to measure such activity and decide whether it was at a depressed level, and to what degree.

Similarly, the reason in international finance there is a focus on current value GDP is because lenders want to know whether a nation can repay foreign loans. As foreign loans are measured in dollars, lenders care about GDP in dollar terms.

But as is often the case, when people with money or institutional power create a metric for their own use case, many other groups see that and go "Aha! Free data!" and they start writing publications using this data for their own purposes, often forgetting what GDP is actually measuring and forcing it into a proxy for what they care about, for example, development economics, and often this is a poor proxy.

[bombcar]

GDP is also useless in that it values doordashing cold fried chicken as more valuable than cooking and eating one you hand raised at home.

[erhserhdfd]

GDP records market transactions. So in your scenario, purchasing the chicken, the chicken feed, the chicken coop, etc would all be measured. The time spent raising the chicken (assuming you did not pay someone to do it), would not be captured.

However, I think part of your criticism is a moralistic and health based argument that raising a chicken is intrinsically better and healthier that Doordashing fast food. When a consumer chooses a $60 delivered meal over a $45 home-cooked alternative, that reveals a preference for whatever they value, such as convenience, time saved, taste, service quality, etc. GDP doesn’t evaluate whether that preference is “good”; it only records the transaction value that arises from it.

So I agree GDP is not a perfect measure, but it's far from useless.