frictional cost การใช้

Market-impacted, liquidity, and frictional costs may also contribute.
Interestingly, this misconception is so entrenched that many otherwise well-informed people believe it . ( I had to sit and think for the best part of a weekend to get my mind round this subject when I first studied it-it's by no means obvious, which is why economists tend to regard David Ricardo as remarkably smart for pointing it out . ) There are, of course, real-world frictional costs in some cases, but these are sufficiently rare " marginal " that they can generally be ignored in the first round of analysis . talk ) 17 : 57, 20 March 2014 ( UTC)