Teaching Market Share using TV Channels

I came across a terrific interactive resource today whilst preparing some resources for our BUSS4 revision workshops. The BARB audience measurement service for TV channels is a great tool for illustrating how market share can be measured. It is also useful for illustrating the concepts of trend & extrapolation…

I took a couple of screen grabs to illustrate how the data can be visualised on the BARB site. In our revision workshops, we’re taking a look at the effect of the recession on ITV plc. The data chart below illustrates how ITV’s problems seem to have been more long-term than just because of the downturn in advertising revenues during 2008 and 2009. ITV’s flagship channel ITV1 has been steadily losing market share, as the proliferation of alternative digital channels grabs an increasing share of the market.