He has been with the General Electric Company (GE) since 1960. Having taken GE with a market value of about $12 billion, Jack Welch turned it into one of the largest and most admired companies in the world,with a market value of about $500 billion, when he stepped down as its CEO 20 years later, in 2000. When Jack Welch took charge of the company, it had a market Value of about ____.