Supply Curve Chart

Figure 10.24 shows a macro-economic supply curve chart. Excel does not allow you to create a column chart with different widths for different columns. In a typical supply curve chart, the height of the bar indicates supplier cost, and the width of the bar indicates units supplied. This chart is created as an XY chart; colored rectangles are placed onto the plot area to simulate data columns. These rectangles are sized and placed according to the plot area scale so that they correctly represent the data.

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