How great should the economic data influence the market?

Why do the economic data influence the market? Because the economic data release can change people’s expectation about the future. Though individual market prices have already included people’s expectations about individual fields, the economic data change people’s expectation about how the great economy may affect the market, in other words the influence from other fields on the individual fields people care about. Before the economic data release, people may have close to perfect information about the individual fields they pay attention to but they lack information about other fields. When the economic data release, people have to reconsider the effects from other sectors. Therefore, the degree of the economic data influence depends on how much people lack information about other fields. In a more mature market, the influence of the economic data should be smaller than that in a less mature market.