In this monograph we ask whether the Deutsche bank, prior to the European Central Bank Governing Council decision at its meeting on 5 June 2014 on a combination of measures to provide additional monetary policy accommodation and to support lending to the real economy, reacted systematically to stock price movements. The results are extremely robust to alternative model specifications. Even if you do not invest in commodities, you should more frequently take a look at the current price of crude oil. The oil price has fallen consistently in recent weeks and months. Just recently global growth forecast for this year decreased to 3.3% by the projections of the International Monetary Fund. The recent strong fall of the exchange rate between Dollars and Euros is just the tip of the iceberg. Many economies use their currencies to gain trade advantages as well. This can lead to a devaluation race. The current crisis has triggered significant debate concerning economic theory and policy. Largely absent from this debate is an informed discussion of the methods used by economists in analysing the economy and formulating their proposals. But method matters.