Part a which detail best supports the idea that people have varying opinions about how valuable a product is? the consumer's willingness to pay a certain price for a given item affects how the retailer sets the price. systems for collecting taxes vary according to where people live. value-added tax is collected from manufacturers, retailers, and consumers. items such as shoes, bottled water, and garden hoses differ in price from place to place. part b which evidence best supports the answer in part a? "one of germany's fiscal policies is to collect taxes in many stages during the production of items." "once you’ve found all the parts you need, you could end up spending between $65 and $120 for your new garden hose! " "prices can also change from one place to another." "we all make decisions about spending, and the companies that sell us products often follow what we as consumers tell them."