Consider an island country called Arcadia. Assume that the aggregate price level is constant, the interest rate is fixed, and there are no taxes in this country. Assume that an increase of $300 in autonomous investment leads to an increase of $900 in equilibrium income.
Required:
1. If the marginal propensity to import equals.0.10, the marginal propensity to consume must be?

If the marginal propensity to import equals.0.10, the marginal propensity to consume must be 0.2333333

Explanation:

In order to calculate the marginal propensity to consume (MPS), we would have to use the following formula:

Multiplier =1/(MPS+MPI)

Multiplier =change in income/change in autonomous spending

Multiplier =$900/$300

=3

Therefore,  3=1/(MPS+0.1)

3MPS+0.3=1

3MPS=0.70

MPS=0.70/3=0.2333333

If the marginal propensity to import equals.0.10, the marginal propensity to consume must be 0.2333333

being born in poverty would limit the people's chances, opportunities and benefits.

this happen because of several things, such as:

- poor people tend to gain less access to good education and nutrition. this mean that their chance to obtain high paying jobs would also be limited.

- poor people tend to socialize with other poor people while the rich tend to socialize with other rich people. this means that simply throguh their social circle, rich people would have more business opportunities compared to the poor people.

- rich people tend to have more capital in their disposal. this would benefit them in business since it is far easier for them to fund their business operation compared to poor people.

answer the law of increasing costs;