Responding to the market means the ability to react and conviction within a period appropriate to the customer's requirements or changes in the market to bring about and maintain the advantage in the race.
To meet the market refers to the ability to respond purposefully and within a reasonable time to the needs of customers or changes in the market to bring about or maintain a competitive advantage.
response marketing refers to the ability to respond forcefully and within time suitable to the needs of customers, or changes in the market to bring about or maintain the advantage in the competition.