Real rate of return is the annual percentage return on an investment. It is adjusted for changes due to inflation or other factors. 

Original cost is the price associated with buying of an asset.

An open market is an economic system with no barriers for the free market activity.

Net-net is a value investing technique where a company is valued solely because of its net current assets.

Net premium is the anticipated present value of a policy’s benefits less than expected value of future premiums. 

Pooled funds is a term describing a portfolio of money from lots of individual investors that are pooled together for the purposes of investment.

Pink sheets are listings for stocks that trade over-the-counter. These are the companies that are not listed on a major exchange like NYSE or Nasdaq.

Reinvestment rate is the amount of interest that can be earned when money is taken out of one and put into another. fixed-income investment 

Reinvestment risk is the possibility that an investor is going to be unable to reinvest cash at a rate of return comparable to the current one.

An indifference curve is a graph that shows a combination of two goods that give a consumer equal satisfaction and making the consumer indifferent to which of these two goods to choose.