Price
Ideally, a marketer wants to be proactive in setting price instead than simply react to the marketplace. To that end, marketer researches the market and competition and plots possible price points, looking for gaps that show opportunities. When introducing a new product, marketer needs to be sure that the price is competitive with that of similar products or, if the price is higher, that the consumers notice they're getting more value for their money.
Many other technical professionals may have an significant impact on marketers' pricing decisions. Again, you can be asked to determine if productivity can be improved so that the product can be manufactured and then sold-for a lower price.