Oh my, you go off on the same mistakes and single-minded delusion as bytemaster and goldbugs with their "tinfoil hats". Read Armstrong more carefully and thoroughly.
First of all, you don't understand what Keynesian economics really is, because vested interests have distorted his theories for their own use. Here are some quotes from a blog and the comments that you should study. Make sure you read the comments from me that are bolded, as I don't agree with Keynes.
http://blog.mpettis.com/2013/08/the-urbanization-fallacy
No, and Keynes never said that. Keynesian pump priming only works if there is high unemployment caused by the self-reinforcing tendency of lost jobs leading to lower demand leading to more lost jobs as factories fire workers. Spending in itself does not create wealth, and Keynes never said that it would. Spending can create a process that under some conditions can cause the economy to grow faster and under other conditions simply creates an unnecessary expense.
http://blog.mpettis.com/2013/08/the-urbanization-fallacy/#comment-750
http://blog.mpettis.com/2013/08/the-urbanization-fallacy/#comment-752
http://blog.mpettis.com/2013/08/the-urbanization-fallacy/#comment-574
http://blog.mpettis.com/2013/08/the-urbanization-fallacy/#comment-581 (my comment)
http://blog.mpettis.com/2013/08/the-urbanization-fallacy/#comment-637
http://www.pbs.org/wgbh/commandingheights/shared/minitext/ess_inflation.html
http://blog.mpettis.com/2013/08/the-urbanization-fallacy/#comment-615
In my mind, simple Keynesian philosophy would be to repair (or build in countries lacking infrastructure) necessary roads and bridges at the onset of recession. Conversely (and this is just as important) when the economy is heating up, slow down the amount of government spending on road and bridge projects, Simple isn’t it? However if look at the nature of governments and politics it isn’t so easy in practice. Many governments can’t seem to pull away the fiscal stimulus when the economy starts to heat up. Running deficits year after year was never what Keynes prescribed.
Rest of the comments below are from me.
http://blog.mpettis.com/2013/08/the-urbanization-fallacy/#comment-621
We programmers have a saying “talk is cheap, show me the code”
http://blog.mpettis.com/2013/08/the-urbanization-fallacy/#comment-516
Backstopping people so that 33 – 50% of the population doesn’t starve, become sickly, stop educating their children, etc.. is more productive than letting the economy spiral into an abyss. But taking it too far to protect 100% of the people from 100% of outcomes is unproductive.
WW2 pretty much destroyed the productive capacity of the rest of the world and left the USA with the best infrastructure remaining (sans Pearl Harbor).
In theory the free market would work best, except that a large society (much inertia in top-down) doesn’t respond as a free market even if given the opportunity. We have to live with what works. But preventing fine-grained annealing of the private sector while responding with appropriate Keynesian spending, which is what is developing now in most of the world developed and developing. For example, I read yesterday India has banned gold imports and made it illegal to transact on gold without a license.
Want to know why the G5 is going to make a war now, read the following comment.
http://blog.mpettis.com/2013/08/the-urbanization-fallacy/#comment-559
http://blog.mpettis.com/2013/08/the-urbanization-fallacy/#comment-760
The G5 has no other option to maintain control as it spirals the global sovereign debt toilet bowl.