We study the tail behavior of the harmonic renewal measure U = Sigma(n
=1)(infinity) (1/n) F-n, where F is a probability distribution with f
inite negative mean and F-n is the n-fold convolution of F. As an app
lication of the obtained result on U, we give alternative proofs of so
me known results concerning the tail behavior of the supremum and the
first positive sum of a random walk with negative drift.