Final answer:
Retailers would like to compete in understored markets due to the low level of competition and the potential for above-average return on investment.
Step-by-step explanation:
In this case, retailers would like to compete in understored markets since many retailers in such markets achieve an above-average return on investment due to the low level of competition in the marketplace. Understored markets are characterized by a scarcity of retail establishments, resulting in fewer options for consumers and potentially higher profits for retailers.