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.
You have little representation of young black men in the business sector, so you have children growing up in disadvantaged neighborhoods who don't hear discussions at the dinner table about what goes on in business. It's almost as if we have two nations.
The 1920s and 1930s were a period of sensational productivity growth: new products were springing up all over the place, and most of those new products and new methods were developed by people who started their own companies.
Disciples of Keynes, who focus on aggregate demand, view any increase in household wealth as raising employment because they say it adds to consumer demand.
At the simplest level, economics can better show us the consequences of our actions. Less simple are cases in which we don't have the knowledge to predict the full consequences. Global warming and climate change are examples.
In essence, capitalist systems are a mechanism by which economies may generate growth in knowledge - with much uncertainty in the process, owing to the incompleteness of knowledge.
I could try to incorporate or reflect in my models what it is that an employee, manager, or entrepreneur does: to recognize that most are engaged in their work, form expectations and evolve beliefs, solve problems, and have ideas. Trying to put these people into economic models became my project.
When the word 'morality' comes up in connection with economics, income distribution and financial stability are usually the issues. Is it moral for rich countries to use such a high proportion of the world's resources or for investment bankers to earn large bonuses?