The world has gotten to that point in which every product should have a particular price is been sold for.
A product that is been sold for $5 in USA should also be sold for $5 in Canada and China, this way it will help the world leaders to remove hunger in the world, it will also help grow the economy of every country because countries can buy product from one another at a better price, this method will really help in reducing suffering in the world because hunger is one of man's major problem.
The world leaders should sit and implement this policy every product will be given a price that will be comfortable to every common man in different countries of the world.
If you want the same price for a product in all countries, I think it will be very difficult to happen and even any government will not be able to implement it in the near future because each country has its own product price benchmark. Apart from that, the prices of imported goods and exported goods will also be different in terms of price because there are costs that must be borne by the party who imports certain goods from other countries into their own country.
So this will cause a slight difference in the price when marketed and goods dealers and goods distributors will also calculate the transportation costs they have to incur when marketing to every corner and country. That is why sometimes we find goods at slightly different prices in other places, which we have to understand because considering the costs and transportation, unless these goods can be produced in all places or by all countries without relying on transportation or any costs to market them.
And regarding reducing the suffering and hunger that still exists in this world, I think the sellers of goods will also suffer if they cannot make a profit through their own sales and they will also be hungry in the end because they really expect profits from the sale of their merchandise. So you also need to pay attention to this because everyone in this world really needs money to live more comfortably without facing hunger and suffering.