"Unexpected" only because we have been so systematically misled by the government and the financial media about the state of the US economy.
People bought in November in expectations and a believe in the recovery. And buying tailed off quickly in December as they realized it was a hoax: there would be instead of recovery a long cold Kondratieff winter.
Yahoo Finance
Retail sales unexpectedly fall in December
January 14, 2010, 8:34 am EST
WASHINGTON (Reuters) - Sales at U.S. retailers unexpectedly fell in December as consumer spent less on vehicles and an array of other goods during the holiday shopping month, data showed on Thursday, raising concerns about the durability of the economy's recovery.
The Commerce Department said total retail sales fell 0.3 percent last month, the first decline in three months, after rising by an upwardly revised 1.8 percent in November. Sales in November were previously reported to have increased 1.3 percent.
Analysts polled by Reuters had forecast retail sales gaining 0.5 percent last month...
"A new, invisible and at times virtual, tyranny is established, one which unilaterally and irremediably imposes its own laws and rules. Moreover, indebtedness and credit distance countries from their real economy and citizens from their real buying power. Added to this, as if it were needed, is widespread corruption and selfish fiscal evasion which have taken on worldwide dimensions. The will to power and of possession has become limitless." Francis I, 16 May 2013