Makro Ekonomi - Keseimbangan Perekonomian 3 Sektor (Contoh Soal dan Pembahasannya)

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8 Mar 202105:41

Summary

TLDRIn this video, the instructor discusses the concept of macroeconomic equilibrium in a three-sector economy, focusing on consumption, investment, and government expenditure. They explain how this equilibrium can be used to measure a country's national income, particularly in closed economies like North Korea, contrasting it with open economies like Indonesia and the U.S. Through a practical example from Sadono Sukirno's book, the instructor illustrates how to calculate disposable income and aggregate expenditure, ultimately revealing the implications of a deflationary gap in national income at full employment.

Takeaways

  • 📊 The focus of the lesson is on macroeconomics, specifically the equilibrium of the economy in three sectors.
  • 🏗️ The three sectors discussed are consumption, investment, and government expenditure.
  • 🌍 This three-sector equilibrium can be applied in both open and closed economies.
  • 🚪 The model differs from the four-sector model, which includes exports and imports.
  • 💰 The equilibrium is represented by savings (leakage) and investments (injections).
  • 📖 The example used is based on Sadono Sukirno's textbook on economics.
  • 🧮 The consumption function is expressed as C = 100 + 0.75Yd, with a tax of 0.2Y.
  • 💼 Full employment national income is set at 1400 in the given example.
  • 📉 The deflation gap is calculated as the difference between potential national income and actual income.
  • 🔍 The lesson concludes with a request for viewers to comment if they want the presentation and to subscribe for more content.

Q & A

  • What is the main focus of today's lesson?

    -The lesson focuses on macroeconomics, specifically the equilibrium of the economy in three sectors.

  • What are the three sectors involved in the three-sector economic equilibrium?

    -The three sectors are consumption, investment, and government expenditure.

  • How does the three-sector equilibrium differ from the four-sector model?

    -The three-sector model does not include exports and imports, which are part of the four-sector model.

  • Can the three-sector model be applied to economies that are not open?

    -Yes, it can be applied to closed economies, such as North Korea.

  • What is meant by 'leakages' and 'injections' in the context of the three-sector equilibrium?

    -In this context, leakages refer to savings, while injections refer to investments and government expenditure.

  • What is the consumption equation provided in the lesson?

    -The consumption equation is C = 100 + 0.75Yd, where Yd is disposable income.

  • What is the significance of the national income level at full employment in the lesson?

    -The national income at full employment is used to calculate the deflation gap in the economy.

  • How is the deflation gap defined in this lesson?

    -The deflation gap is defined as the amount of aggregate expenditure shortfall needed to achieve full employment consumption.

  • What is the full employment national income stated in the transcript?

    -The full employment national income stated is 1400.

  • What was the calculated national income for the three-sector economy in this lesson?

    -The calculated national income for the three-sector economy was 1340.

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Related Tags
MacroeconomicsEconomic BalanceThree SectorsNational IncomeGovernment SpendingInvestment InsightsEducational ContentKorean EconomyEconomic TheoryStudent Learning