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The first question: We assume that we have an economy that produces three groups of commodities: food, clothing, and building materials: If the production and

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The first question: We assume that we have an economy that produces three groups of commodities: food, clothing, and building materials: If the production and price data during 2008 and 2009 are as follows: Price(RS) Quantity (ton) 2009 800 200 2008 100 80 1200 1000 Food 45 40 80 120 Clothing 25 30 140 100 Building materials If you know that the base year is 2008, calculate all of the following: 1- Consumer price index with explanation? 2- Gross domestic product reduced 2009 with explanation? The second question: If you know that the marginal propensity to consume is 5.0 and that the break-even point is at an income equal to 200, find the following: 1- The consumption function 2- The value of automatic consumption 3- The saving function 4- The average propensity to consume and the average propensity to save If you knew that disposable income It has risen 250 what does it indicate from them? Third question: You were consulted about the feasibility of investing in a project that costs 500,000 riyals, as the investor expects that the project will generate 800,000 riyals within 5 years. Would you advise investing if you knew that the interest rate was 5%? Question 4: You have data on the economy of a country: S = -50 + 0.2Yd 1= 60 G = 100 T = 15 X = 35 M = 12 + 0.3Y Required: 1 - Find the equilibrium level of income in a closed economy consisting of three sectors. 2 - Find the value of consumption and saving at equilibrium in a closed economy consisting of three sectors. 3 - Find the level of income at equilibrium in an open economy, and what is the value of consumption and imports at equilibrium. 4. Find the value of saving at equilibrium. 5 - Verify that injection equals leakage in an open economy. 6 - Calculate the change in equilibrium income if investment decreased by 20. 7 - Calculate the trade balance, and does it suffer from a deficit or a surplus

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