Talk:Precautionary savings

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The sign of the 3rd derivative[edit]

should the sign of the 3rd derivative to be negative, rather than positive? Jackzhp (talk) 20:37, 16 May 2011 (UTC)

needed to be positive in order to have precautionary saving (I mistaken this again). if the sign is 0, we can not the preference is not prudent. Jackzhp (talk) 20:41, 16 May 2011 (UTC)

prudence vs. reckless[edit]

what if the sign is negative, what is the word for it? reckless?? Jackzhp (talk) 20:52, 16 May 2011 (UTC)