A first result of the modelling exercise is that the average growth rate of the global economy is projected
to remain roughly constant over the forecast horizon. As indicated in Table 7.1 the weighted average of
the global GDP at PPP (purchasing power parity) is expected to remain unchanged at 3.8% until about
2030. Taking into account the real appreciation of emerging markets, the measured growth rate may
currently be slightly higher at 4.1%, but this is also not expected to increase significantly. Such growth rate
will imply, as shown in Figure 7.1, that the world GDP will double by 2030, and other economies like
China and India will be three times larger than now