Suppose the demand for tomato juice falls. IllustraFor any level of output above QE , a buyer values a unit of goods in this market the unit will cost a seller. Suppose now that a firm that produces for this market is able to emit particulate matter into the air surrounding its production facility, harming wildlife and negatively affecting the breathing of nearby residents. This is an example of due to .e the effect this has on the market for tomato juice. Demand Supply Price of Tomato Juice Quantity of Tomato Juice D 1 D 2 Supply