Turn Inc., a large consumer-goods manufacturer, has a strong brand loyalty created by effective advertising over the years. Tim states that this kind of advertising causes barriers to entry, while Joan argues that this is not the case. Which of the following statements supports Joan's argument?
1) Autumn Corp., a new brand, gains an equal market share to Turn Inc.
2) Neil Read Inc., a small-scale magazine, rejects other sponsors to accommodate Turn Inc.'s ads.
3) Smaller brands spend more than Turn Inc. does on advertising.
4) Turn Inc. is the market leader in the industry.
5) There is high market concentration in the industry caused by Turn Inc. and other leading brands.