What is the economy of Pokemon like?

They have port cities (even though they're primarily for luxury liners) so they must be making something that needs shipping. Are there factories way off the beaten path? It seems like two companies, Silph and Devon, make everything Pokemon related, but what about normal stuff? What do the eat? Are there Pokemon slaughterhouses? Who makes their clothes? TV's? Furniture? Do Pokemon trainers get jobs when they grow up? It's got to be like professional sports, where some make it, and the rest move on to something else.