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Q: Why is a smile a curve that straightens many things?
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How does demand curve moved for commodity?

The demand curve for a commodity is moved based on its overall value. If many people wish to buy it, the curve will go up and if it drops in sales, the curve will fall as well.


What happens to the supply curve when any of these determinants change?

There are many ways in which the supply curve could change when a determinant changes. The supply curve could go down for example.


Why is money supply curve vertical?

The money supply curve is assumed to be vertical by many textbooks based on the belief that the supply of money is unaffected by the changes in interest rates.


What is the lorenz curve and what dose is suggest about the distribution of income on the us?

the Lorenz curve is the curve that illustrates income distribution, the curve states that there is a big income gap between Americans for many reasons: differences in skills and education, inheritances, and field of work. the wealthiest fifth Americans households earned nearly as much income as the four- fifths combined.


Phillips curve tradeoff make it difficult for fiscal policy?

The Phillips curve actually does not technically exist, although a modified, expectations Phillips curve does hold empirically. Moreover, the curve demonstrates a trade-off between unemployment and inflation. Essentially, the premise is that fiscal policy cannot solve inflation and unemployment. However, the curve does not hold after the 1960s, and many case studies show fiscal policy can solve both issues to a degree, or at least increase both at the same time.