Weighted Average Loan Age (WALA) defines the average age of loans in a pool of mortgage-backed securities, weighted by the remaining principal balance or nominal value.
This post explains how to calculate Weighted Average in Excel with percentages. In a standard arithmetic average where the sum of values is divided by the number of values, each data value is treated ...
This Economic Letter discusses a topic that at first glance appears to be boring and technical but that in fact turns out to be quite important: the proper interpretation of chain-weighted data. To ...