Figuring out what was driving pretty violent market moves this week was trickier than usual – and that says something about how much the herd has scattered this year, with ‘risk on-risk off’ correlations having weakened sharply. Just as everyone puzzled over a potential “wall of money” from Japan after the BOJ’s aggressive reflation efforts, the bottom seemed to fall out of gold, energy and broader commodity markets – dragging both equity markets and, unusually, peripheral euro zone bond yields lower in the process. As dangerous as it may be to seek an overriding narrative these days, you could possibly tie all up these moves under the BOJ banner – something along these lines: the threat of a further yen losses pushes an already pumped-up US dollar ever higher across the board and undermines dollar-denominated commodities, which have already been hampered by what looks like yet another lull in global demand. Developed market equities, whose Q1 surge had been reined in by several weeks of disappointing economic data and an iffy start to the Q1 earnings season, were then hit further by a lunge in heavy cap mining and energy stocks. The commodities hit may also help explain the persistent underperformance of emerging markets this year. What’s more the lift to Italian and Spanish government bonds comes partly from an assumption any Japanese money exit will seek U.S. and European government bonds and relatively higher-yielding euro government paper may be favoured by some over the paltry returns in the core ‘safe havens’ of Treasuries or bunds. The confidence to reach for yield has clearly risen over the past six months as wider systemic fears have receded – something underlined in dramatic style this week by a huge lunge in gold, now lost almost 20 percent in the year to date.