Socio-economic data on grid level (SUF 7.1). Purchasing power

The purchasing power reflects the household income.  It comprises information on labour supply, capital wealth, rental and leasing income minus taxes and social security contributions, including social transfers such as unemployment benefits, child-allowances and pensions. Regular payments, e.g. for rent, electricity or insurance premiums are not subtracted from the purchasing power. Microm computes the purchasing power in cooperation with Michael Bauer Research GmbH. The computation is based on statistical models on a small regional scale. This allows for small-scale purchasing power information on the street segment and postcode (PLZ8) level. As explanatory variables for the econometric models, many microm variables are used, such as typology, age, status and the car variables. Due to persistent differences between East and West Germany, the purchasing power was modelled separately for both parts (microm 2016, p. 106).