I apologize ahead of time for the length...
I've read 4 big economics fallacies in this thread: Minimum wage laws cause inflation; Minimum wage laws are good for poor people (yes some people have successfully argued against that one); Inflation is cause by the increase in oil prices; deflation is bad (no its not! it depends on what's causing the deflation).
If anyone here really cares about learning economics (and you probably should), then I've got some suggestions for you. It boggles my mind why so many people want nothing to do with learning economics when it affects their lives every day (I'm referring to people in general, not necessarily on this forum). The best place to start:
By reading at least one economics book:
Economics in One Lesson by Henry Hazlitt. Short, easy to read. The book starts with the lesson and then uses it with over 20 case study examples, such as: the broken window fallacy (that war, earthquakes, etc. are good for the economy), government subsidies and loans, trade tariffs, trade deficits, and most importantly for this discussion, price controls (like rent, gas, and labor),
minimum wage, and
inflation.
The one lesson is:
The art of economics consists in looking not merely at the immediate but at the longer effects of any act or policy; it consists in tracing the consequences of that policy not merely for one group but for all groups.
The best part: The book is available cheaply in print, or free in both PDF and HTML on the internet. I'm not even asking you to spend money (just 5-20 hours of your time - and it will be well spent). One copy here:
http://jim.com/econ/
Minimum wage: It's impact is through causing unemployment. By placing a price control/floor on wages, you are pricing out of the market anyone who's labor value is less than that minimum wage. If you make the wage for a job more than it's economic value, what do you think will happen? As a business owner, you will do something else that is more economical with your business. Lay off employees and make the remaining employees do more work, thus raising their labor worth the increase in pay. Who gets laid off? The least productive workers, generally those just starting out. Or the business could outsource work to other parts of the world where they can pay what the labor is worth to the business, or go out of business and layoff every employee.
Contrary to popular believe, employers can't just set an arbitrary wage to maximize their profits. Competition on the free market will cause businesses to end up paying exactly what the labor is worth. Laws can change that, but they will cause unemployment.
Minimum wage laws can't cause inflation: Well, at least by themselves. If there is a fixed amount of money, raising the rates of some workers in the economy by minimum wage, necessarily means that other workers wages will need to decrease. Usually this happens by causing unemployment. Since there are still the same dollars in circulation, overall prices can't increase. Sure demand for some items will cause those prices to go up, but other prices will have to drop to clear the market (sell all manufactured goods). No inflation can occur. The same logic applies to say an increase in the price of oil. If people are required to pay more for oil products, then they will have to decrease spending elsewhere. Prices will then have to fall on those products to clear the market.
Someone previously mentioned that minimum wage studies don't always show an increase in unemployment. That's because inflation is happening at the same time, in other words, counteracting the minimum wage increase. The more inflation, the smaller the impact of the minimum wage on unemployment (and the real purchasing power increase of the beneficiaries).
So what is inflation: It is an increase in the amount of the good that is used most commonly in the exchange of goods, namely: money. How does the amount of money increase? With our current fiat money (money because our government says it is, at the point of gun, nonetheless), it gets created by a private entity, the Federal Reserve. Other banks can do it to, but the bank would go out of business if it did, without a lender of last resort. The Federal Reserve can really just keep printing (or creating on a computer) more money. That increase in money, and that multiplied by other banks' lending, is what is inflation and causes a general rise in prices.
The federal government uses it like a tax that most citizens don't recognize as a tax. It borrows money from the Federal Reserve, to essentially create more money out of thin air. That money is then spent by the government when it still has it's initial value and by the time it trickles to us, prices have already risen. More accurately, the value of the dollar has decreased in relation to that of other goods in the economy. Anyone who saved (or loaned at too low an interest), just had their money stolen (taxed) as it can now buy fewer real goods. Anyone who borrows tends to make out good in this situation, as they pay back their balance later in money that's worth less.
The US had deflation for 30 years in the late 1800s and it was the period of largest sustained economic growth (don't buy the myth that there were depressions - they base those arguments on falling warehouse prices), but job growth was still outstanding and personal wealth for all Americans was growing - hardly bad. With a fixed amount of money (not being inflated by government or a government sanctioned monopoly - central bank), as the amount of goods produced (economic growth) occurs, prices will steadily drop over all (deflation). Those who save and are employed (there was very little involuntary unemployment, too) see their real purchasing power increase. A real raise, not a nominal one.
The deflation that economists point to that is bad is that caused by banks going out of business because they loaned more money than they had (created money out of thin air with the help of the central bank (Federal Reserve)). People with savings in those banks are hurt. If this happens to one bank it's not so bad, but a lot of banks, the money supply shrinks - good for those with savings in other banks, not so much for the economy in general and can cause a secondary depression.
BTW,
A fourth fallacy: that anyone who is knows about the power of the free market is a republican or right winger (I'm insulted!) Most republicans are not free market, but are for corporate cronyism (Plutocracy/Fascism - choose the work you like), but don't really realize they are. Most left wingers who are against the free market, aren't really against the free market, or at least they don't argue against it. They argue against our current corporate cronyism capitalism, which is far from a free market.