Are customers the same all over the world or do culture and size of a country make a difference?

not exact  the culture, size and traditional of the country distinguish between the customers in which there is a lot of common product such as Pepsi doesn't not mater with the size and culture but in general for sure not all the customers around the world are the same.

The desire of Satisfaction of getting desired results is sought by all. However, the means differ across cultures, religions and demography. Understanding the different demographics,cultures,religions helps in having a better understanding of customer psyche. This in turn helps to adopt acceptable means to satisfy the customers.

general thinking is the same , culture and size make a little difference

Customer thinking is same all over the world only there behaviour will be different depending on culture and region

The culture and size of a country do make a difference.