Interventions in deephousehold

Abstract

This section presents the modelling of policy interventions (or measures) in the DeepHousehold model. A measure is defined as a targeted, selective intervention to counteract or support a trend in a specified scenario. While a short-term measure is the sending of drinking water warning flags, a longer-term and more significant reduction in the consumption of drinking water can be achieved by means of a change in technology that results in more efficient use of resources. In the model, this is tested by introducing two types of measure (subsidies, informational) and two types of technical innovation that should be promoted (showerheads, toilet flushes). Model results stemming from several runs are given for a four-month measure to innovate showerheads in 2020 and a three-month measure to adapt modern toilet flushes in 2030. It becomes apparent that different actor milieu types react differentially to the measures. The results are discussed and an outlook is given.