Unlike niche-oriented shopping bots, broad-based shopping bots:​ select one:
a. ​give pricing power to the retailers.
b. ​search for prices for only one type of product.
c. ​operate using a yellow pages type of model.
d. ​include examples like seatgeek(event tickets) and kayak(travel-related services).

Respuesta :

Unlike niche-oriented shopping bots, broad-based shopping bots:​ operate using a Yellow Pages type of model. 

Niche-oriented shopping bots, stick to their customer base, their "niche". Your niche is a place or position that you live in, grow and thrive in.  Each person has a niche, and likewise, so do businesses. Something that is broad-based and focuses using a Yellow Pages type deal, is trying to reach a large spectrum of people for their product.