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[Ordinary and Superior Good] [Ordinary and Inferior Good] [Giffen and Inferior Good]

To change the price of good X from its initial value p_xA, slide the blue p_x-button in the yellow field. You can restore the applet by clicking on the symbol in the upper right corner.

Sorry, the GeoGebra Applet could not be started. Please make sure that Java 1.4.2 (or later) is installed and active in your browser (Click here to install Java now)

Made by Dr. Jens Peter Siebel with GeoGebra.

Note that X is not only an ordinary good but also a superior good. We see that the substitution effect and the income effect pull in the same direction.

In general: Any superior good is an ordinary good, but not any ordinary good is a superior good.

Last update: 04/05/2011