137) What is the difference between institutional advertising and advocacy advertising? 138) What is the rationale for local advertising? 139) Explain how and why a marketer might use crowdsourcing. 140) What is a USP? When would a marketer use a USP strategy? 141) When might a marketer be most likely to use informative advertising? 142) When does a marketer use reminder ads? 143) When might a marketer be most likely to use a comparative ad? 144) What is a benefit of a demonstration ad for a product, and when is this type of execution format most useful?