(1) Keynes is hardly the first or last word in economics. (2), you don’t seem have the slightest clue what the Laffer curve says. It’s about a single revenue “event,” more or less. I’m talking about potential economic growth.
There’s no lackof investment opportunities, only a lack of capital available to lend. The more allowed to remain in the economy, the better is grows. Even if spent on consumption, that consumption will enrich people’s lives directly and encourage more investment over time through higher profits.
Now, some people think that just bcause the money doesn’t vanish, taxes are fine. This is an extremely facile reading of the economy. Whenever the government takes wealth, it tends to put it into value-destroying propositions. That is, the govenrment has no idea what people really value. It quite deliberately is set up to balance political factors and actors, not to deliver value. And it wastes disgusting amounts of wealth. it builds roads which no one needs or services which are not worth the money spent. Bureaucratic inertia builds.
Some noted that even with a 100% tax rate, the government gets some money. This is pretty obviously false. No matter what the theory, if people were actually left with nothing they could not work. The government would have to still leave something. And in practice, Communist nations never were able to totally get rid of the market, only kneecap it and starve themselves. Even if it didn’t pay you in money, you’re still paid in goods and services.
This is possibly the single most blatant strawman I have ever personally been subject to. Unfortunately, it’s not particularly interesting or original. What people buy for themselves with their own money is no concern of yours or mine.
Actually, I think that certain investments by government can be quite good and very useful. That does not make them morally right, only necessary. Y’know, I’ve acutally rather amused by the ridiculously poor level of reading ability on the Dope. No one actually seems to be able to understand what I do not say unless I list it (that’s is a rather long list, so i don’t often do it).
You do what you must to get what you need. You do no more than what you need. What irritates me is when government defines “need” as “feels like it.” Which is most of the time. I think infrastructure, for axample, is often a legitimate government service (where a natural and aunavoidable monopoly would exist anyway). Thus, you can hardly have two road networks, and there’re few ways to charge people by road usage, and people never really know what roads they will need to use and can’t predict it. Thus, I consider road nets a neccessary public good.
But I didn’t previously mention the case of necessities, only practicalities. Arpanet eventually bore very valuable fruit, but we cannot likewise ignore all that could have been done with the money otherwise, nor that the concept of linking networks was hardly originated with Arpanet alone. In any case, the military research, and kater straight military, networks I consider necessities.