coach53 wrote:But NOT much to think about, because what you wrote are the SAME for the compared qualities, aren't they (?).
Reserach don't have interesting profit, if customers don't want to pay enough extra to make it interesting...
Research is the key to increase your competitiveness. Take a simple example. You are selling oil to your customer, normally he will buy like 35+Q, then research earn you better profit.
Also for selling store. If your product is of far lower quality, you will find difficulty in selling them.
For your question, I think two possible reasons account for that:
1. Selling in different time, place or size of store
2. Your friend may buy some raw materials from market to carry out production. That means it may increase its cost, finally lowering his profit.
