JPMorgan is ramping up its hiring of investment-banking analysts and associates, BI has learned.This comes after the bank set new limits on work hours for juniors and saw a 31% jump in deal fees.The fourth quarter is usually a slow period of hiring for investment banks. Sign up to get the inside scoop on today’s biggest stories in markets, tech, and business — delivered daily. Read preview Thanks for signing up! Go to newsletter preferences Thanks for signing up! Access your favorite topics in a p ...