Black markets are illegal markets that emerge in response to price controls. A few buyers are able to obtain the good at the open-market price; the rest must resort to illegal means. The additional demand is met by underground suppliers selling at much higher prices.
The government does not support the black market or any of their actions with getting items and selling them in other forms. Those who are in demand of a good when they have a hard time in getting it may purchase it illegally at a higher price just so they can receive that good. When there is an exchange of goods in the black market, these items are usually prohibited by the government and therefor illegally being sold.
The economic principle that you are taking into account is the marginal principle.
<h3>What is the marginal principle?</h3>
The marginal principle is an economic principle that states when making a decision, compare the marginal benefit of the decision to the marginal cost of the decision. The course of action should only be taken if the marginal benefit is greater or equal to the marginal cost.
Marginal cost is the additional cost generated by producing an additional unit of output. Marginal benefit is the benefit derived from consuming one extra unit of a good.
For example, the marginal benefit of the tenth and eleventh slice is $10 and $7 and the marginal cost of the 10th and 11th slice is $10. The marginal principle suggests that the person should buy only ten slices of pizza.
To learn more about marginal cost, please check: brainly.com/question/26246533
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The word to fill the blank space is "S<span>econdary Memory".
Complete sentence will be as below:
</span>Secondary memory <span>holds data at a time when the computer is not on an/or at a time when a program is operating its functions.
</span><span>This part also serves as archival storage, it is used when someone needs to store huge amount of data and for a longer period of time.</span>