Consider the "local economy" as the entire planet. There is no reason to expect that "local" has to mean your own country. Goods, currency and labour are all

Consider the "local economy" as the entire planet. There is no reason to expect that "local" has to mean your own country. Goods, currency and labour are all placed on a global platform for competition. If you are concerned with trying to sandbox your bit of currency into a particular geographical area then you are fighting a loosing battle because there is no real reason to do that. I don't see any reason why a local merchant would be interested in selling goods/services that are somehow better for their local economy. They will attempt to sell what sells best. As will the big box store.