10. Given that each row on the vending machines can only hold chips or candy bars, if a new research study suggests that eating chocolate will make you healthier, then candy bars will become more popular. This will increase the demand for candy bars (and also the price you can charge). If people are willing to pay more for candy bars, what do you think should happen to the supply of chips? (You can only put candy bars OR chips in the vending machine, what happens to the supply of chips?) Do you think that the cross price elasticity of supply between chips and candy bars should be positive or negative