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Le modèle Mundell-Fleming: Au cœur de la macroéconomie internationale ( Culture économique t. 7) (French Edition) – Kindle edition by Jean Blaise Mimbang. 17 juil. traditionnel de Mundell-Fleming a ensuite souligné la dichotomie . () a par exemple proposé récemment, le critère d’homogénéité des. View Notes – Chapitre 4 – from ECONOMIE at Université de Nantes. Modle de Mundell-Fleming IS-LM en conomie ouverte A partir du modle de.

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Investment and consumption increase as the interest rates decrease, and currency depreciation improves the trade balance. Thus net payments flows into or out of the country need not equal zero; the exchange rate e is exogenously given, while the variable BoP is endogenous.

Mundell–Fleming model – Wikipedia

In particular, it may not face perfect capital mobility, thus allowing internal policy measures to affect the domestic interest rate, and it may be able to sterilize balance-of-payments-induced changes in the money supply as discussed above.

Increased government expenditure shifts the IS curve to the right. Retrieved from ” https: The Mundell—Fleming model applied to a small open economy facing perfect capital mobility, in which the domestic interest rate is exogenously determined by the world interest rate, shows stark differences from the closed economy model.

In this graph, under less than perfect capital mobility the positions of both the IS curve and the BoP curve depend on the exchange rate as discussed belowsince the IS-LM graph is actually a two-dimensional cross-section of a three-dimensional space involving all of the interest rate, income, and the exchange rate.

However, the exchange rate is controlled by the local monetary authority in the framework of a fixed exchange rate system. Under perfect capital mobility, the new BoP curve will be horizontal at the new world interest rate, so the equilibrium domestic interest rate will equal the world interest rate. Under the Mundell—Fleming framework of a small economy facing perfect capital mobility, the domestic interest rate is fixed and equilibrium in both markets can only be maintained by adjustments of the nominal exchange rate or the money supply by international funds flows.

This will mean that domestic interest rates and GDP rise.

Modèle OG-DG

The denominator is positive, and the numerator is positive or negative. Nevertheless, Dornbusch concludes that monetary policy is still effective even if it worsens a trade balance, because a monetary expansion pushes down interest rates and encourages spending. By using this site, you agree to the Terms of Use and Privacy Policy.


Se, a monetary expansion, in the short run, does not necessarily improve the trade balance. Midle, this keeps the exchange rate at its targeted level.

Modèle OG-DG — Wikipédia

Mundell’s paper suggests that the model can be applied to Zurich, Brussels and so on. In the very short run the money supply is normally predetermined by the past history of international payments flows.

Views Read Edit View history. Therefore, the rise in government spending will have no effect on the national GDP or interest rate.

The exchange rate changes enough to shift the IS curve to the location where it crosses the fleminv BoP curve at its intersection with the unchanged LM curve; now the domestic interest rate equals the new level of the global interest rate.

Whereas the traditional IS-LM model deals with economy under autarky or a closed economythe Mundell—Fleming model describes a small open economy. In the IS-LM model, the domestic interest rate is a key component in keeping both the money market and the goods market in equilibrium. In contrast, under fixed exchange rates e is exogenous and the balance of payments surplus is determined by the model. Under flexible exchange ratesthe exchange rate is the third endogenous variable while BoP is set equal to zero.

Development Growth Monetary Political economy.

If the global interest rate increases, shifting the BoP curve upward, capital flows out to take advantage of the opportunity. When the latter goes up, the BoP curve shifts upward by the same amount, and stays there.

Reprinted in Cooper, Richard N. A decrease in the money supply causes the exact opposite process. The Mundell—Fleming model under a fixed exchange rate regime also has completely different implications from those of the closed economy IS-LM model.

This principle is frequently called the ” impossible trinity fleking “unholy trinity,” “irreconcilable trinity,” “inconsistent trinity,” policy trilemma,” or the “Mundell—Fleming trilemma. If there is pressure to devalue the domestic currency’s exchange rate because the supply of domestic currency exceeds its demand in foreign exchange markets, the local authority buys domestic currency with foreign currency to decrease the domestic currency’s supply in the foreign exchange market.

Reprinted in Mundell, Robert A.

However, in reality, the world interest rate is different from the domestic rate. A higher e leads to higher net exports. Fleminf disposable income or a lower real interest rate nominal interest rate minus expected inflation leads to higher consumption spending.


If there is pressure to appreciate the domestic currency’s exchange rate because the currency’s demand exceeds its supply in the foreign exchange market, the local fe buys foreign currency with domestic currency to increase the domestic currency’s supply in the foreign exchange market.

In the end, the interest rate stays the same but the general income in the economy increases. An expansionary monetary policy resulting in an incipient outward shift of the LM curve would make capital flow out of the df.

Higher lagged income or a lower real interest rate leads to higher investment spending. An increase in the global interest rate shifts the BoP curve upward and causes capital flows out of the local economy. Economics models International macroeconomics Open economy macroeconomics. The Mundell—Fleming model portrays the short-run relationship between an economy’s nominal exchange rate, interest rate, and output in contrast to the closed-economy IS-LM model, which focuses only on the relationship between the interest rate and output.

Canadian Journal of Economic and Political Science. The IS curve is downward sloped and the LM curve is upward sloped, as in the closed economy IS-LM analysis; the BoP curve is upward sloped unless there is perfect capital mobility, in which case it is horizontal at the level of the world interest rate. In a system of fixed exchange rates, central banks announce an exchange rate the parity rate at which they are prepared to buy or sell any amount of domestic currency.

The reason is that a large open economy has the characteristics of both an autarky and a small open economy. The shift results in an incipient rise in the interest rate, and hence upward pressure on the exchange rate value of the domestic currency as foreign funds start to flow in, attracted by the higher interest rate. The central bank under a fixed exchange rate system would have to instantaneously intervene by selling foreign money in exchange for domestic money to maintain the exchange rate.