Incoming data since our meeting in early March confirm that the cyclical recovery of the euro area economy is becoming increasingly solid and that downside risks have further diminished. At the same time, underlying inflation pressures continue to remain subdued and have yet to show a convincing upward trend. Moreover, the ongoing volatility in headline inflation underlines the need to look through transient developments in HICP inflation, which have no implication for the medium-term outlook for price stability. A very substantial degree of monetary accommodation is still needed for underlying inflation pressures to build up and support headline inflation in the medium term. If the outlook becomes less favourable, or if financial conditions become inconsistent with further progress towards a sustained adjustment in the path of inflation, we stand ready to increase our asset purchase programme in terms of size and/or duration. Let me now explain our assessment in greater detail, starting with the economic analysis. Euro area real GDP increased by 0.5%, quarter on quarter, in the fourth quarter of 2016, following a growth rate of 0.4% in the third quarter. Incoming data, notably survey results, bolster our confidence that the ongoing economic expansion will continue to firm and broaden. The passthrough of our monetary policy measures is supporting domestic demand and facilitates the ongoing deleveraging process. The recovery in investment continues to benefit from very favourable financing conditions and improvements in corporate profitability. Employment gains, which are also benefiting from past labour market reforms, are supporting real disposable income and private consumption.
For the recovery to be sustained, the economy must eventually be supported by a pickup in private capital spending. Thailand is no exception. It is understandable why private investment so far has not contributed much to the economic recovery following the 1997 crisis. With about half of industrial capacity lying idle at the trough of the situation as a result of prior over-investment and demand contraction, there was very little incentive for firms to spend further on capital accumulation. Thus, the share of real private investment to real GDP fell from the average of 33 percent between 1990 and 1996 to just 11 percent in 1999. The collapse in private investment is also reflected in the large and persistent saving-investment surplus, which has thus far narrowed only slowly despite the strong recovery in GDP. These symptoms show that a recovery in private investment has lagged substantially behind the overall economic recovery and that there is still much room for private investment to catch up and close the existing saving-investment gap. The good news is that we have already begun to see a gradual pick-up in capital spending. Private investment growth that was at a modest 4.7 percent in 2001 has accelerated to 13.3 percent in 2002 and 17.5 percent in the first half of this year, and the share of real private investment to real GDP has also risen to 16 percent last quarter. But will this trend continue long enough to provide the needed fuel to sustain the current expansion?