Mises thought that social cooperation through the free market resulted in peace and prosperity, regardless of whether people or societies accepted this or not.
Although huge government expenditures are not in themselves inflationary, a large deficit is almost certain to be financed by inflationary means—by directly or indirectly printing more money.
The stock market does not have a life of its own. In a relatively free economy, success or failure of investment in stocks depends ultimately on the same factors that determine success or failure of any business.