The following appeared as part of a promotional campaign to sell advertising space in the Daily Gazette to grocery stores in the Marston area:"Advertising the reduced price of selected grocery items in the Daily Gazette will help you increase your sales.

In attempt to sell advertising space to grocery stores, the author of a campaign claims that the grocery stores will increase their sales if they advertise the discounted items in Daily Gazette. The line of reasoning is that two-third of the shoppers asked for a survey confirmed that they read the ad and half of those spent more than $100 at the store. However, I think this argument is not convincing because the author fails to address many important factors.

Firstly, the author made an assumption that the store in downtown Marston only advertised in Daily Gazette in order to boost the sales. In the commercial market, there’re a lot of channel available for grocery stores to promote their products, such as email advertising, magazine advertising and radio advertising, etc. It’s very likely that the store promoted their products on multiple media planform, rather than only advertising in Daily Gazette. Therefore, there’s no guarantee that those who came to buy products at the store were attracted by the ad on Daily Gazette, but not by the ad on other media.

Secondly, there’s no evidence showing that the sales of those advertised products is actually growing. It’s possible that the shoppers who answered in the affirmative just came to purchase the products for daily demand, instead of being driven by the ad in Daily Gazette. So, the author would have to provide evidence to prove the sales of advertised products is increasing actually.

Finally, the author mentioned that half of the customers who answered in affirmative spent more than $100 in the store, so that it’s concluded the ad is useful for increasing the sales. However, it could be possible that the number of shopper who spent over $100 is more than that of those who take the survey. The conducted survey only targeted 200 shoppers, it’s hard to decide these are the main force to boost the sales of the store in a certain period.

In sum, this argument is not convincing because it omitted many factors that should be taken into consideration. The author would have to prove that the advertising in Daily Gazette is the only campaign conducted by the store, the sales of advertised items has increased and those who read the ad were the main force to boost the sales.