(d) In economics, the Lorenz curve is a graphical representation of the distribution of income or of wealth.It was developed by Max O. Lorenz in 1905 for representing inequality of the wealth distribution. It is often used to represent income distribution, where it shows for the bottom x% of households, what percentage (y%) of the total income they have. The percentage of households is plotted on the x-axis,the percentage of income on the y axis.