To address the eurozone crisis, the European Central Bank (ECB) adopted a negative interest rate policy in 2014. The ECB lowered its deposit rate to -0.1% that year to hold off deflation and move the economic bloc out of a prolonged recession. Today, the ECB deposit rate is - 0.5%, the lowest on record. In theory, negative rates would boost the economy by encouraging consumers and banks to take more risks through borrowing and lending money. Using the IS-LM framework, explain why traditional monetary policy fails in the presence of zero lower bounds, and how the negative interest rate policy may help the ECB to bring the economy out of recession.

[20 marks]