Signaling Strategy

In Game theory, signaling is a strategy by which Sellers send buyers signals that convey information about a product’s quality. In the labor market, education is a strong signal. So, education might not really improve my productivity as a employee, but it is an important signal to the employer. So, is that all an MBA is about? A signaling strategy that we would use to differentiate ourselves from the rest of the crowd. Or is there actual learning involved in it? Since the time I have come here, I have wondered how much am I actually learning? Am I making the most of this opportunity? How important are grades? Do grades enhance learning or do they hamper learning? Should most of my efforts be towards scoring better grades? Can there be a balance such that good grades and learning both happen together? And what about other extra-curricular activities? Will I really be a better decision maker at the end of this one year or am I just doing this as a signaling strategy. Hopefully, all my questions will be answered.