Trade across countries can boost economies and help businesses grow. Organizations like the WTO try to make trade fair by setting rules. Even so, taxes on products, called tariffs, can make it hard for countries to trade freely. To deal with this, countries may create special trade deals with one another that lower these taxes and encourage business. Online shopping is also changing how businesses sell products around the world. New technologies, like digital money and secure online records, are helping to make buying and selling across borders quicker and easier.