In a large city, the ride-hailing services VoltCab and ZoomRide are highly interchangeable, with commuters regularly switching between the two apps to find the cheapest fare for identical journeys.
Which one of the following is the most likely cross-price elasticity of demand (XEDXEDXED) between VoltCab and ZoomRide?
+0.3+0.3+0.3
+3.8+3.8+3.8
−0.3-0.3−0.3
−3.8-3.8−3.8