explain why the federal deposit insurance corporation (fdic) and the securities
and exchange commission (sec) were so important in light of the causes of the great
depression.

The Federal Deposit Insurance Corporation (FDIC) was created in in 1933 and it was to protect bank depositors and ensure a level of trust in the American banking system, during the Great Depression.

The Exchange Commission (SEC) was created in 1934 and the goal was to  to help investors feel comfortable to put money back into the stock market.

Both were important to create confidence in american people, and to create the possibility to  get out of the Great Depression.

The money is the best injector factor in the economic system.

Further explanation:

Injection in economics:

In economics, the injection refers to the additional in the national income of a country. The injection in economics includes government spending, investment and exports. The injection occurs when the funds are added in the economy from the sources other than households and businesses. The household buys the goods and services from the businesses and business allocates the funds to wages, interest, rent and profit. These outflows are received by the household who then use the funds for the purchase of the goods and services. This is known as the circular flow of funds. The injection in the economy occurs when the cash is injected in the economy from the sources other than households and businesses. The injection of the funds in the economics flows in three ways:

1.Investments

2.Government spending

3.Exports  

Thus, the injector factor in economics is money. The injection is an inflow of money in the economy from untraditional sources.

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Answer details  

Grade: Senior School

Subject: Economics

Chapter: National income

Keywords: Which, best, describes, injector, factors, bring, economy, system, household and businesses.