Cocamaster said:
So, in other words, how is this "better" than having a regulatory body determining a price for the product that isn't too high for the buyer but not too low for the seller?
You're right with your general stab at the idea that truly anarchic "free markets" allow for exploitation through cabals, trust, monopolies, insider trading, and all that jazz.
The little bit I specifically quoted here is kind of taking the wrong tact, thought.
Why does a market economy work better than a planned economy? Because a controlling body simply can't collect and analyze the colossal quantity of information needed to make optimal pricing decisions. In the USSR, the government really did just go out and set prices. Like, someone would publish a report that would say "Okay, now you're supposed to sell bread for $1.35 exactly". This worked out terribly -- and I'm saying that as someone who knows a bit about the country's history, not some "communism bad!" knee-jerker. Imagine the price of bread fluctuating as wildly as the price of oil did a while ago -- the central planners were so far behind the actual shortages and surpluses that they couldn't help but force everything wildly up and down. Centrally-planning the production and distribution of goods was even worse. Imagine the kinds of behaviors you see for luxury goods like "summer blockbuster" opening day or a new video game console
for basic necessities. When glasnost' made it okay to finally talk about this stuff, the country was doomed: there was no way that this kind of system could survive open political scrutiny. China, in contrast, managed to create economic growth and political stability by "opening up" its economy while keeping a lid on political expression (at the cost of, y'know, everything you lose when you keep a lid on political expression).
In a market economy, every single agent is participating in figuring out the "correct" price for something just by acting on whatever information it has to work with locally. In the absence of abuse and manipulation (monopolies, insider trading, fraud, &c. -- sometimes you definitely do need regulation to make that absence a reality), the emergent decision-making power of the whole system is much better able to synthesize data and react to changing economic conditions than a central planning body can.
-- Alex