The table gives estimates of the price elasticities and cross-elasticities of demand for bus and rail travel.
What would be the change in the volume of rail travel resulting from a 1% increase in bus fares?

an increase of 0.16 %
2 )
an increase of 0.43 %
3 )
a reduction of 0.13 %
4 )
a reduction of 0.37 %
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