Bank of Japan surprises markets with negative interest rate policy

Take it as a lesson in how to turn a negative into a positive. Earlier this month, Japan ruled out negative interest rates, making it all the more of a surprise this Friday when the Bank of Japan lowered the benchmark from 0.1% to -0.1%. Now banks will be encouraged to lend more, and exporters could see relief as the yen should weaken. Plus, we find out the effects the Paris terror attacks had on the wider French economy's 2015 performance, and meet the man who is London's most popular landlord.