It was briefly mentioned in our textbook, and it really got me thinking. What I am talking about is, how companies through marketing are able to seemingly differentiate a relatively similar commodity/good. One prime example would be bottled water; how is it that companies such as Evian, Perrier and Nestle are able to make people believe that their water is better than tap water and superior to their competitors.
So I started to look around Youtube, in search of finding some water commercials and seeing how water bottle companies were branding their bottle water. But instead of finding a water commercial, I found this video clip which I believe to be very informative 
After watching this video, I looked back onto how my family began buying bottle water instead of drinking tap water. The reason was due to the fact my parents started to believe that tap water was dirty because there were a couple of cases that popped up saying that some people got ill from drinking tap water. So now that I think about this, I start to wonder if it was possible that water bottling companies were the ones behind blowing up these news stories, which, if were true, seems to come into some ethical issues.
In the end the video mentions that the “bottle water fad” is fading fast because people are becoming “greener”, this is an example of a social trend that these companies need to pay very close attention to. And I do believe that some companies have already recognized this and tried to differentiate themselves in an alternative way, which is they are trying to seem more Eco-friendly or more socially responsible. For example Ethos Water is selling themselves as a brand that supports third world countries in getting access to clean water.