People are reasonably good at estimating how things add up, but for compounding, which involved repeated multiplication, we fail to appreciate how quickly things grow.
Paul RomerRead
An economy can survive with 10% of the population insolation. It can't survive when 50% of the population is in isolation.
Interpretation
High levels of isolation in a population can lead to economic collapse.
Paul Romer's quote emphasizes the importance of social interaction and connectivity for a thriving economy. While a small percentage of the population can be isolated without severe consequences, widespread isolation—when it affects a significant portion of the population—can severely disrupt economic stability and growth.
In practice
During a speech about the impact of social distancing on the economy, one could use this quote to highlight the risks of isolation.
People are reasonably good at estimating how things add up, but for compounding, which involved repeated multiplication, we fail to appreciate how quickly things grow.
When somebody discovers something like the quadratic formula or the Pythagorean theorem, the convention in science is that he can't control that idea. He has to give it away. He publishes it. What's rewarded in science is dissemination of ideas.
One of the most powerful insights in economics is this idea of a division of labor. You do the thing you're good at. Other people do something else that they're good at. The net effect is better for everybody.
Human material existence is limited by ideas, not stuff, people don't need copper wires they need ways to communicate, oil was a contaminant, then it became a fuel
It is the job of government to prevent a tragedy of the commons. That includes the commons of shared values and norms on which democracy depends.
In the developing world, most people don't yet live in big well-run cities. Given the chance to move to one, hundreds of millions of people would go there to get a job, get an education for their children, and live in a place that is clean, safe, and healthy.
Modern economics is a set of formal models and equations purporting to fully determine human behaviour, at least in the economic realm. And there is no way that uncertainty can be compressed into determinate mathematical models.
Thus, the weight of my criticism is directed against the inadequacy of the theoretical foundations of the laissez-faire doctrine upon which I was brought up and for many years I taught
China's government has far more control over the country's economy than our government has over ours, and it is moving from export dependence to a model of growth driven by domestic demand. Any restriction on exports to the U.S. would simply accelerate a process already underway.
Our public credit is good, but the abundance of paper has produced a spirit of gambling in the funds, which has laid up our ships at the wharves as too slow instruments of profit, and has even disarmed the hand of the tailor of his needle and thimble. They say the evil will cure itself. I wish it may; but I have rarely seen a gamester cured, even by the disasters of his vocation.
Competition is the most promising means to achieve and secure prosperity. It alone enables people in their role of consumer to gain from economic progress. It ensures that all advantages which result from higher productivity may eventually be enjoyed.
It is regrettable that people think about our monetary system, and of our economic structure, only in times of depression.
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