If an economy is not in a golden rule steady state, it represents its s(current) is not equal to s(golden rule). Choose the option(s) that correctly reflect the change on y, c, i after the adjustment of saving rate to the Golden Rule level.
Question
If an economy is not in a golden rule steady state, it represents its s(current) is not equal to s(golden rule). Choose the option(s) that correctly reflect the change on y, c, i after the adjustment of saving rate to the Golden Rule level.
Solution
The Golden Rule level of capital is the amount of capital stock that maximizes consumption in the steady state. If an economy is not in a Golden Rule steady state, it means that the current saving rate (s(current)) is not equal to the Golden Rule saving rate (s(golden rule)).
Here are the possible scenarios:
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If s(current) < s(golden rule), it means that the economy is under-saving. In this case, increasing the saving rate to the Golden Rule level would increase investment (i), which would in turn increase capital accumulation and output (y). However, consumption (c) would initially decrease because more of the output is being saved and invested, but in the long run, as the capital stock grows and the economy reaches the Golden Rule steady state, consumption would also increase.
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If s(current) > s(golden rule), it means that the economy is over-saving. In this case, decreasing the saving rate to the Golden Rule level would decrease investment (i), which would in turn decrease capital accumulation and output (y). However, consumption (c) would initially increase because less of the output is being saved and invested, but in the long run, as the capital stock decreases and the economy reaches the Golden Rule steady state, consumption would decrease.
So, the correct options would be:
- If s(current) < s(golden rule), y and i increase, c initially decreases but increases in the long run.
- If s(current) > s(golden rule), y and i decrease, c initially increases but decreases in the long run.
Similar Questions
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