Warning: Undefined array key "visitor_referer_type" in /var/www/vhosts/wordinf.com/core/app/libraries/Core.php on line 98 Paul Samuelson - The growth of a nation's productive...
The growth of a nation's productive potential is the central factor in determining its growth in real wages and living standards.... high rates of investment and saving usually have a big payoff in promoting economic growth.