Does dre actually make his beats by dre?

theyre under his name but what exactly do you think he does to make them? and speaking of companies, why dont crappy razors like bic make better 7 blade razors? why do they wait and make one extra blade at a time when they could have made 10 blades instead of 4 or 5? why do some razor blade companies have such plain crappy razors? even if they copied gillette or something they would make a lot more money wouldnt they?