Article Source My previous post regarding government statistics elicited a lot of commentary, with a tremendous amount of vitriolic commentary directed at the current approach to calculating the CPI. Rather than provide more of my own thoughts on what constitutes an appropriate mix of theory and pragmatism, I will quote from the author whose work I had to read in graduate school, W. Erwin Diewert. From his entry in the 1998 Journal of Economic Perspectives which had a symposium on the Boskin commission report: Defining a true cost of living index must begin on the household level, and then move to the social level. The Konuis (1939) true cost of living index for a single household is defined as the ratio of the minimum costs of achieving a certain reference utility level in a base period, given the prices prevailing at that time, and at a later "current" period, ...

We believe it is important to look at return and volatility risk in both absolute and relative terms. For relative performance, we think the 10-year US Treasury bond is a good base to use, because is it relevant to all asset classes.

It relates as well to stocks as to bonds, to real estate, to commodities or to just about any asset class.

Tables of numbers have their place and use, but we also believe a picture is worth a thousand words. We try to put important data into visual formats to make it easier to see meaning. Some people do better with numbers in tables and some do better with pictures. Here is our way of visualizing risk adjusted return.

We call our proprietary way of calculating returns and volatility relative to government bonds “Treasury Indexed Quotients (TIQ)”, a registered trademark.

Each month, we calculate the TIQ for

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