Keynes consumption function 12 f so, the low c would lead to an 9 3 inadequate d for g&s, resulting in 765 a depression once the wartime d for the government ceased (secular stagnation long depression of indefinite duration)Keynes & consumption function If so, the low C would lead to an inadequate D for g&s, resulting in a depression once the wartime D for the government ceased. (secular stagnation: long depression of indefinite duration)