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The Mundell–Fleming model under a fixed exchange rate regime also has completely different implications from those of the closed economy IS-LM model. In the closed economy model, if the central bank expands the money supply the LM curve shifts out, and as a result income goes up and the domestic interest rate goes down. But in the Mundell ...
Macroeconomics is a branch of economics that deals with the performance, structure, behavior, and decision-making of an economy as a whole. [1] This includes regional, national, and global economies .
The impossible trinity (also known as the impossible trilemma, the monetary trilemma or the Unholy Trinity) is a concept in international economics and international political economy which states that it is impossible to have all three of the following at the same time: a fixed foreign exchange rate; free capital movement (absence of capital ...
In contrast, a closed economy restricts international trade and finance with other countries. In an open economy, the sale of goods or services to a foreign country is known as exporting, while the purchase of foreign goods or services is referred to as importing. Collectively, these activities form the basis of international trade.
A macroeconomic model is an analytical tool designed to describe the operation of the problems of economy of a country or a region. These models are usually designed to examine the comparative statics and dynamics of aggregate quantities such as the total amount of goods and services produced, total income earned, the level of employment of productive resources, and the level of prices.
An economic model is a theoretical construct representing economic processes by a set of variables and a set of logical and/or quantitative relationships between them. The economic model is a simplified, often mathematical, framework designed to illustrate complex processes.
The IS–LM model, or Hicks–Hansen model, is a two-dimensional macroeconomic model which is used as a pedagogical tool in macroeconomic teaching. The IS–LM model shows the relationship between interest rates and output in the short run in a closed economy .
The government budget can be directly introduced into the model. We consider now an open economic model with public deficits or surpluses. Therefore the budget is split into revenues, which are the taxes (T), and the spendings, which are transfers (TR) and government spendings (G). Revenue minus spending results in the public (governmental) saving:
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