By Rachel More BERLIN (Reuters) -German business morale unexpectedly worsened in January, declining for the second month in a row as Europe’s largest economy struggles to shake off a recession and as short-lived optimism gives way to fears of another weak year. The Ifo institute said its business climate index fell to 85.2 from a slightly downwardly revised reading of 86.3 in December. Analysts polled by Reuters had expected the indicator to improve in January to 86.7. “The German economy is stuck in recession,” said Ifo president Clemens Fuest. German gross domestic product (GDP) contracted b…