Four advantages corporations brought to the american consumer included

One of the advantages was that the old mom & pop stores were no longer practical, because the corporations were more convenient. You didn't have to ride around to go to seven stores anymore, you would just go to the big-block store and get everything you needed there. Furthermore, corporations provided a large amount of unskilled jobs - previously, the largest part of the "American dream" was to go and start your own business, farm, etc., but now you could go get a job at a factory or supermarket, so the job market was diversified. Those are just two, but I'm sure you can think of more!

With the exponential growth of corporations throughout the 20th century, this brought numerous benefits to the American consumer:

Products increased in their quality levels, as production processes were improved.There was standardization of products, assuring that a certain product would share the same characteristics in all of its samples.The availability of these products was larger as they were now distributed nationwide.The price for these goods was reduced as production processes improved as well as the development of economies of scale.