3) 4) Ronald owns a corn farm at the source of a long river. Fertilizer run-off from his corn fields ows into the river and down many miles to where Carla lives. Carla gets her drinking water from the river. By allowing the fertilizer run-off to seep into the river, Ronald imposes a negative externality on Carla. In each of the two following cases, do you think, that through negotiation, Ronald and Carla can find an efficient solution? What might this solution look like? (2 points) a. There are no telephones, and for Carla to talk to Ronald, she has to travel for two days on a rocky road. 13. Carla and Ronald both have email access, making it costless for them to communicate. Explain how each of these market outcomes help reduce "transaction costs." (3 points) a. An Oregon apple grower hires a farm labor contractor who provides harvest work crews for the farm when needed. b. An Oregon winery uses a Salmon-safe label to signal their use of sustainable Viticulture practices. c. A restaurant asks its customers to rate their eating experiences on Yelp