How many dollars earn jeans business? which countries influenced on appearance of jeans?
did Italy have a huge impact on jeans industry?
which country made jeans tougher and harder?
who is Jacob?​

1. Well, earnings depend on the quality of jeans or whether it is a trendy thing. 2. I cannot say the exact answer because different countries have different fashions, different attitudes towards jeans, etc. For example, in North Korea it is forbidden to wear jeans.