Look for tax - caused market changes in the news. One today is from Seeking Alpha http://seekingalpha.com/article/245942-emerging-market-etfs-investo..., saying among other things:
"Here’s the reality: Hedge funds, institutional advisers and money managers had remarkable unrealized gains in single country emergers. Many of these folks -- including yours truly -- deferred the recognition of those gains until after New Year’s Day. Put another way, investors are taking profits for profit sake."
Some know that market inefficiencies are caused by huge tax costs related to selling stock (in this example, where many investors waited until 2011 - January to take profits to avoid taxation last year).
One reason given for tax complexity is to effect public policy through that tax code. Is this market instability and inefficiency an example of public policy INTENTIONALLY written into the 3.8 Million line tax law? This is just one "tip of the iceberg" example of wasteful tax law constraints that make things worse, not better for society. The Fair Tax is also the efficient (and stable, less destructive of our economy) tax.
This (including avoiding government - caused financial meltdowns) is yet another reason to repeal the income tax mess, and deploy the Fair Tax.