I can give a limited explanation. I really do not know much about them, except, as the article stated, they are in business to increase the amount of mortgage money available, thereby reducing mortgage interest rates and increasing the proportion of the population with the capability of qualifying for a home. I will try to find out what the titles mean, and post this information in the discussion area. A dollar today is different from a dollar at any other time. There are only four equations involved in discounted cash flow techniques.
Any equation has four variables.
The hardest part of DCF is determining what information you have and what it is that you are looking for. The next hardest part is determining the time line of cash flows. So, I always start out a problem by drawing a time line. The most important part is that you understand the concept, so that you can talk intelligently with your banker, CFO, mortgage lender, finance professor, etc. I want you to describe how you would expect each industry to behave.