It boosts up profitability in the tradable goods sector, which is mostly manufactures, and we have had over the last five or six years a doubling of investment going into the manufacturing sector.
它提升了可交易货物领域的利润,这大多是在制造业,过去5到6年中,我们向制造业领域的投资增加了一倍。
But PPP only applies to tradable goods that are easily exchanged across borders, like commodities or electronics.
不过,购买力平价仅适用于便于跨境交换的可交易商品,比如大宗商品或电子产品。
Developing economies typically 「learn by doing」, as economists put it, mostly in industries that make tradable goods which can be sold on world markets.