(KU), Kamstra, Kennedy, and Suan (2001) (KKS)), Debt/Total Capitalization
(PS, Ederington (1985) (E), Standard and Poor’s (2001b) (SP)), Debt/Total Capitalization
squared (PS), EBITDA/ Interest Expense (KU, SP), EBIT/ Interest
Expense (SP), (Log of) Total Assets (KKS, SP), and EBITDA/Total Assets (included
as an additional measure of profitability). In a regression including all of
these variables, several of the variables are redundant or have counterintuitive
coefficient signs. By systematically dropping the redundant or nonpredictive
variables, a regression including only (Log of) Total Assets, EBITDA/Total Assets,
and Debt/Total Capitalization has an adjusted R2 of 0.631, approximately
the same as a regression with all of the explanatory variables, and the coefficients
on each of the variables are the correct sign and significant. I use the
coefficients from this parsimonious regression to calculate the Credit Score as
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