Explain The Different Between Product Concept, Production Concept And Marketing Concept?

Marketing concept believes that if a Company does extensive research, and find out what the customers need, they should find ways of satisfying the customers need better than their competitor.This will lead to customer focus and profits.  The Production concept see things differently they believes that anything they produce which are highly affordable and available the customer will buy it, and this can cause marketing myopia, which is if you don't focus on satisfying customer's needs, you will have these products in your storeroom that will never sell, and this will cause a company to loose big. So in conclusion the marketing concept is different from the Production concept, because the marketing concept cares about the customers so they research what they want and provide it,  while the Production concept just want to have something to sell and make the price reasonable and have it in abundance. In other words they take the customers for granted.