Offer your thoughts or opinion on the input financial query or topic using your financial background.

Optimize return of dividends based on payout per share
The term you're looking for is yield (though it's defined the other way around from your "payout efficiency", as dividend / share price, which makes no substantive difference). You're simply saying that you want to buy high-yield shares, which is a common investment strategy. But you have to consider that often a high-yielding share has a reason for the high yield. You probably don't want to buy shares in a company whose current yield is 10% but will go into liquidation next year.