Porters Five Force Analysis of GrubHub in America. SHould cover the following five questions:Competitive Rivalry. This looks at the number and strength of your competitors. How many rivals do you have? Who are they, and how does the quality of their products and services compare with yours?Supplier Power. This is determined by how easy it is for your suppliers to increase their prices. How many potential suppliers do you have? How unique is the product or service that they provide, and how expensive would it be to switch from one supplier to another?Buyer Power. Here, you ask yourself how easy it is for buyers to drive your prices down. How many buyers are there, and how big are their orders? How much would it cost them to switch from your products and services to those of a rival? Are your buyers strong enough to dictate terms to you?Threat of Substitution. This refers to the likelihood of your customers finding a different way of doing what you doThreat of New Entry. Your position can be affected by people’s ability to enter your market. So, think about how easily this could be done. How easy is it to get a foothold in your industry or market? How much would it cost, and how tightly is your sector regulated?