Entrepreneurs' willingness to innovate or just to invest - and thus create new jobs - is driven by their 'animal spirits,' as they decide whether to leap into the void.
Mass prosperity came with the mass innovation that sprung up in 1815 in Britain, soon after in America, and later in Germany and France: It brought sustained growth to these nations - also to nations with entrepreneurs willing and able to copy the innovations.
Workers in decent jobs view the economy as unjust if they or their children have virtually no chance of climbing to a higher rung in the socioeconomic ladder.
Well into the 20th century, scholars viewed economic advances as resulting from commercial innovations enabled by the discoveries of scientists - discoveries that come from outside the economy and out of the blue.
No amount of debt restructuring, even debt forgiveness, will help the Greeks achieve real prosperity. What they need is not short-term relief but, rather, a long-term cure.
Companies like Google and Facebook may offer jobs allowing or requiring imagination and creativity, but the whole of Silicon Valley accounts for only 3 percent of national income and a smaller percentage of national employment.
