Low interest rates benefit individuals or investors who own or want to buy assets; in that regard, they disproportionately benefit wealthier Americans.

I'm not an economist, but I have spent time around thousands of small-business owners and investors, and I remain skeptical - despite the best intentions of the Fed - that even lower interest rates can make a meaningful dent in our unemployment problem.

When interest rates are high you want the average direction in which interest rates are moving to be downward; when interest rates are low you want the average direction to be upward.

The gig economy is empowerment. This new business paradigm empowers individuals to better shape their own destiny and leverage their existing assets to their benefit.

The real challenge was to model all the interest rates simultaneously, so you could value something that depended not only on the three-month interest rate, but on other interest rates as well.

The Fed is not finished yet in raising interest rates. Investors are still cautious on inflation and that may trigger a sell-off in Treasuries.