Goldbach launches advertising expenditure index

Advertising market Based on data from Media Focus, Goldbach Media launches a monthly index for advertising expenditure and advertising pressure.The Goldbach ElectronicMediaIndex (GEMI) shows the development of electronic media in comparison to the overall market since the introduction of the first advertising window in 1993. Monthly seasonality is filtered out of the time series. The short-term view compares the past 13 months of TV, radio, online and teletext individually.