What is the IS curve?

The IS curve depicts the set of all levels of interest rates and output (GDP) at which total investment (I) equals total saving (S). The intersection of the IS and LM curves shows the equilibrium point of interest rates and output when money markets and the real economy are in balance.

What causes a shift in the IS curve?

If consumers decide to save more (which means that marginal propensity to consume declines) then consumer spending declines and the IS curve shifts left. If consumers decide to save less (so marginal propensity to consume rises) then consumer spending increases and the IS curve shifts right.

Is curve a diagram?

The goods market equilibrium schedule is the IS curve (schedule). It shows combinations of interest rates and levels of output such that planned (desired) spending (expenditure) equals income. The goods- market equilibrium schedule is a simple extension of income determination with a 45° line diagram.

How do you derive the IS and LM curves?

Derivation of the LM Curve: The LM curve can be derived from the Keynesian theory from its analysis of money market equilibrium. According to Keynes, demand for money to hold depends upon transactions motive and speculative motive. It is the money held for transactions motive which is a function of income.

Why is it called IS curve?

The name “IS curve” derives from the property that it represents that desired investment equals desired saving.

Is curve math derived?

The Derivation of IS Curve: Algebraic Method: The IS curve is derived from goods market equilibrium. The IS curve shows the combinations of levels of income and interest at which goods market is in equilibrium, that is, at which aggregate demand equals income.

What is the equation of LM curve?

Note that both relationships are combinations of interest rates and output. Solving these two equations jointly determines the equilibrium. Algebraically, we have an equation for the LM curve: r = (1/L ₂) [L + L ₁Y – M/P].

What is the MP curve?

MP curve. The MP curve displays a positive relationship, upward-sloping curve, where the real interest rate is located on the vertical axis and inflation rate on the horizontal axis. Shifts on the MP curve are produced by actions of the Federal Reserve.

Is the curve a movement?

Movements along the IS curve: As interest rates rise, output falls. Shifts in the IS curve: As government spending increases, output increases for any given interest rate. IS Curve: At lower interest rates, equilibrium output in the goods market is higher. An increase in government spending shifts out the IS curve.

WHY IS curve is downward sloping?

Downward-Sloping IS Curve When the interest rate falls, investment demand increases, and this increase causes a multiplier effect on consumption, so national income and product rises.

What is the slope of IS curve?

The slope of a curve y = f(x) at the point P means the slope of the tangent at the point P. We need to find this slope to solve many applications since it tells us the rate of change at a particular instant. [We write y = f(x) on the curve since y is a function of x. That is, as x varies, y varies also.]

Is LM a blood pressure curve?

In addition to the balance in goods and financial markets, the model incorporates an analysis of the balance of payments. Secondly, the LM curve, which represents the equilibrium in the money market. Thirdly, the BP curve, which represents the equilibrium of the balance of payments.

Is LM a diagram?

The IS-LM model appears as a graph that shows the intersection of goods and the money market. The IS stands for Investment and Savings. The LM stands for Liquidity and Money. On the vertical axis of the graph, ‘r’ represents the interest rate on government bonds.

What is the slope of LM curve?

Slope of LM Curve The slope of the LM curve is the coefficient of Y, k over h, or the income sensitivity of demand for real money over the interest sensitivity of demand for real money.