MACROECONOMICS IN MODULES
MACROECONOMICS IN MODULES
5th Edition
ISBN: 9781319245368
Author: KRUGMAN
Publisher: MAC HIGHER
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Chapter 15, Problem 5P
To determine

Concept Introduction:

Monetary Policy: This policy is used by the central bank to control the liquidity of money from an economy to bring the economy to a stable condition. This is done through the management of interest rate and the money supply.

Expansionary Monetary Policy: This policy is used by the government to expand the money supply in the economy. Money supply is increased by reducing the interest rate, as lower interest rates will encourage people to borrow more.

Contractionary Monetary Policy: This policy is used by the government to contract the money supply from the economy. Money supply is reduced by increasing the interest rate, as higher interest rates will de-motivate people to borrow.

Inflationary gap: At the level of full employment, if the value of real GDP is greater than the value of the potential GDP, it leads to an emergence of the inflationary gap.

Recessionary gap: At the level of full employment, if the value of the potential GDP is greater than the value of the real GDP, it leads to an emergence of the recessionary gap.

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3. Case 2) Coal plants exit, and Solar generation enters the market Now, let's consider a scenario where the coal power plant (#1) shuts down and exits the market, and a solar generation facility is constructed. The capacity of the solar generation facility is the same as the coal power plant that went out of business. The generation capacities of this market are shown below, along with their MC. Table 3: Power Plant Capacity and Marginal Cost: Case 2 Plant # Energy Source Capacity (MW) MC (S/MWh) 2 Oil 100 90 3 Natural Gas 500 50 4 Nuclear 600 0 5 Solar 300 5 Note that the solar plant (#5) can generate electricity only from 7 AM until 5PM. During these hours, the plant can generate up to its full capacity (300 MW) but cannot generate any when unavailable. (a) Draw a supply curve for each hourly market (4AM, 10 AM, 2PM, 6PM). (b) Find the market clearing prices and calculate how much electricity each power plant generates in the hourly market (4AM, 10AM, 2PM, and 6PM). (c) Find the…
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4. Case 3) Electricity demand increases due to increased EV adoption We will continue using the Case 2 supply curve (with the solar plant in operation) for this analysis. Suppose that electricity consumption from electric vehicles (EV) increases significantly. Consequently, electricity demand in the wholesale market increases at every hour. The new demand levels are shown in Table 5 below. The market operator has backup power plants (using natural gas) ready, with a total capacity of 300 MW and a MC of $100/MWh. Table 5: Hourly Demand (selected hours) Hour Demand (MWh) 4 AM 800 10 AM 1000 ... 2 PM 1100 ... 6 PM 1300 (a) Find the market clearing prices and calculate how much electricity each power plant generates in the hourly market (4AM, 10AM, 2PM, and 6PM). Is there a specific hourly market in which the market operator will need to dispatch backup generation? (b) Compare the Case 2 scenario with the Case 3 scenario in terms of CO2 emissions and average electricity price. Based on…
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