The reality of life is that a devalued pound will push up the costs of imports.
The world was sucked into this single state economy and we in Britain have benefited from low cost imports from China.
The value of currencies against each other on the world market are subject to manipulation. We have already seen the value of the pound fall at Brexit only to regain most of its value within a few days. Its now dropped off again as the markets wait to see what happens with Carney's report on how he is going to assure the world that Sterling is stable with a Britain outside the EU.
The winners of these fluctuations are traders on the stock market and they are in it for themselves (making money no matter at what cost). The losers are the investors who always seem to buy at the peak and sell in panic when the price drops.
The Reserve Bank will not want to scare investors at this time, but long term would be very happy with a lower Sterling value as exports become cheaper - an important factor in world trading.
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