Interactive IS-LM economic model

Best used on a larger screen. All horizontal and vertical values are model index units, not real-world billions or percentage points. The open-economy goods market uses I + NX = S; the expenditure box below the charts shows Y = C + I + G + NX with implied C. Adjust the sliders to see how equilibrium moves; use the chevrons to open component sliders.

Output is near full employment (Y=50.0, Y*=50). Within +/-5 index units.

IS-LM Model
ISLM
Investment and Savings (IS)
I+NXS
Money Market (LM)
MdMs/P
LaborNear Y*
LSLD
Model Parameters
50
50
50
50
50
Expenditure accounting (graph index units)
Consumption C0.0
Investment I50.0
Net exports NX0.0
Government G0.0
Savings S50.0
Interest rate r (IS–LM index)10.0
Output Y (IS–LM)50.0
About this model

The IS curve summarizes open-economy goods-market equilibrium in (Y, r) space: planned spending meets income with I + NX = S (net exports NX shifts the schedule with investment). The LM curve summarizes money-market equilibrium for a given price level: higher real money supply shifts LM right/down.

The money market panel shows a vertical real money supply Ms/P and a downward-sloping money demand curve in (quantity, interest rate) space. The IS-LM diagram plots IS and LM in (Y, r) space; the IS thumbnail plots I + NX against S.

Axes are index or model units for teaching, not calibrated data. Fiscal G and components under Savings still move the combined IS schedule in the IS-LM view; use Net exports under Investment for NX.