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Signaling theory results from asymmetric information, which refers to the fact that managers have more information about a company’s future prospects than the firm’s owners and creditors. Since managers are reluctant to sell new stock if they think the stock is undervalued, but very willing to sell stock if they think the stock is overvalued, selling stock sends a negative signal about a firm’s future prospects. Pecking order theory, which is related to signaling theory, suggests that managers choose methods of financing based on the visibility of signals they send. Raising equity is the least preferred method of financing under pecking order theory, and it sends a negative signal.