Revenue diversification and balanced use of revenue sources have long
been held as desirable policy aims by many tax policy analysts, especi
ally the Advisory Commission on Intergovernmental Relations. Ladd and
Weist asserted that revenue balance is not a valid policy goal in and
of itself. The disagreements between the two schools of thought have b
een difficult to sort out in part because of differences in perspectiv
es and in part because of the lack of an acceptable quantitative measu
re of diversification and definition of balance. This article uses an
empirical method for determining diversification and shows that past d
efinitions of revenue balance have been overly narrow. However, in con
trast to Ladd and Weist, the empirical measures of diversification do
show that revenue balance is related, at the margin, to improved fisca
l performance, and thus that balance remains a worthwhile policy aim.