The positive correlation between real (PPP) investment rates and levels of PPP income across countries is one of the most robust findings of the empirical growth literature. We show that this relationship is almost entirely driven by differences in the price of investment relative to output, rather than by differences in nominal investment rates. When measured in nominal terms (i.e., at nationa...

let f, g and h be all entire functions of several complex variables. in this paper we would like to establish some inequalities on the basis of relative order and relative lower order of f with respect to g when the relative orders and relative lower orders of both f and g with respect to h are given.