I think one depressing example is innovation in weapons and other dangerous fields. "If we don't build it, someone else will first" is unfortunately historically been shown to be true, has it not?
Today's unsavory borderline reactionary doomposting brought to you by: my crippling fear that I'm isolating myself in a political echo-chamber (so naturally I gotta hop online and exclusively ask my fellow leftists)
???? Not under capitalism, well regulated or otherwise markets can only maximize one thing and that's profit, nothing else can be internalized, the minute scarce resources enter the capitalist market they're priced out of the hands of the majority of the population and subjected to unsustainable extraction processes
Nothing like this has ever been true in the entire history of capitalism, not even in the most benign subnational local markets; "attended needs" and "similar ability to participate" would be internalized in the market as a demand crash or as a crowded out market
Aggregate Neoclassical thoery is bunk dude, it's been bunk since Anwar Shaikh exploded its major fundamental precept in 1974
Also there's not much point in being a liberal if someone's not a capitalist, since the entire point of liberalism is to justify the continued existence of capitalism
When did I say it's efficient under capitalism?
(And most liberals aren't capitalists whether you think there's a point to that or not)
Do you have any other examples of existing markets?
I meant capitalist supporters