The President and Congress change the budget accordingly, but after 18 months, GDP only increased by three quarters of the expected amount. What factors might be responsible for this situation?

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What do you mean by "accordingly?" To what are you referring?

Assume that the economy is already in a recession, and both the President and Congress have decided to do something to restore the economy. Both agree that lowering taxes would not be a good idea, but do believe that it is in the best interest of the economy to increase government spending in defense, education & infrastructure.

The President and Congress change the budget accordingly, but after 18 months, GDP only increased by three quarters of the expected amount. What factors might be responsible for this situation?

There are several factors that could potentially be responsible for the situation where GDP only increases by three quarters of the expected amount after 18 months, despite changes in the budget by the President and Congress. Here are a few possible explanations:

1. Economic Factors: There could be various economic factors at play, such as changes in consumer spending habits, changes in business investment levels, or changes in international trade conditions. For example, if consumers are saving more and spending less, it can impact overall economic growth.

2. External Factors: The performance of the global economy can also have an impact on a country's GDP growth. Factors like changes in foreign exchange rates, global market conditions, or geopolitical events can influence economic growth rates.

3. Implementation Delays: The effects of budget changes take time to materialize, as policies need to be implemented and their impact on the economy needs to be realized. Delays in the implementation process or a time lag between policy changes and actual results can contribute to a lower-than-expected GDP growth.

4. Unforeseen Circumstances: Unexpected events or crises, such as natural disasters, pandemics, or political instability, can disrupt economic activities and dampen GDP growth. These unforeseen circumstances can lead to a deviation from the expected growth trajectory.

To further analyze the situation and determine the factors responsible for the lower-than-expected GDP growth, it would be necessary to conduct a thorough economic analysis, considering various data points, indicators, and expert opinions.