I can't see anybody from the UK inputting on this. So here goes.

I live in a small rural town in England. population 3500 to 4500.
Next year TESCO will have a supermarket installed here.
What will the effect be to the local shops?
I think it will drive them out of business. We will be left with cafes and pubs.

Sure it will provide jobs and possibly bring more wealth to the town.

However, what will be lost is the fantastic small shop supplying specialised help and care. You go into these shops and they know their products and can advise at length on their products. They have time for you. You always see the same person, and their advice is so valuable. They support the community in many ways.

I personally don't see why Tesco's need to encroach on our small town at all.