What is the signaling effect of dividend changes according to the text?

The signaling effect of dividend changes indicates that an increase in dividends suggests management expects good future earnings, while a decrease or smaller-than-expected increase signals poor future earnings. This reflects the information content of dividend announcements, as managers often have better insights into future prospects than investors.

Dividend changes serve as signals to investors regarding management's expectations for future earnings. When a company increases its dividends, it is interpreted as a positive forecast for earnings, while a reduction or smaller increase is seen as a negative signal. This signaling effect is significant because it can influence stock prices based on investors' perceptions of the company's future performance. Therefore, firms should carefully consider these signaling effects when making decisions about their dividend policies.