Clear calls inc., a telephone service provider, has a large user base mainly because phone calls and messages between all clear calls users are free. when a person switches to a clear calls network, his or her entire network of family and friends is likely to switch to the same network to avail the benefit of free calls and messages. in addition, an existing user who gets a new user to register with clear calls inc. is given a free wireless connection. this has to keep competition away from clear calls. in this scenario, which of the following factors is acting as an entry barrier for clear calls inc.?
a. economies of scale
b. high capital requirement
c. network effects
d. high fixed costs
c. network effects

1. list five staple convenience goods that you or your household buys on a regular basis. (you do not need to use complete sentences. 2.5 points) 2. list three impulse convenience goods that you or someone you know has purchased. (you do not need to use complete sentences. 2.5 points) 3. describe a shopping good that you or someone you know purchased. what kind of research did you or that person do before buying the product? (1-5 sentences. 3.0 points) 4. choose an example of a company you could start, and decide which business structure would make the most sense for that type of company (sole proprietorship, partnership, llc, c corporation, s corporation, or nonprofit corporation). explain why this structure would be good for this type of company. give at least 3 reasons. (3-6 sentences. 6.0 points) 5. if you were starting a new business, describe at least three departments to the company that you would need right away. why are these departments so important? (1-5 sentences. 3.0 points) 6. describe a product that you think has saturated its market. what makes you think it has saturated its market? (1-5 sentences. 3.0 points)