The most important factor when choosing a location for a supermarket is likely to be low-cost land. This is because a supermarket needs a large plot of land in order to accommodate the building, parking lot, and other necessary infrastructure. Low-cost land will allow the supermarket to maximize its profits by reducing its overhead costs. Proximity to suppliers may also be important, as having suppliers nearby can reduce shipping costs and help the supermarket keep its shelves stocked. Exchange rate and energy costs may also be important factors, but they are likely to be secondary to the importance of low-cost land.