In many OECD countries, performance indicators are used to measure the quantity (and sometimes quality) of services provided by agencies (OECD, 2010a). In some respects, that is their purpose: to raise performance levels. However, agencies may focus on achieving specific targets and give too little attention to overall improvements. Unfortunately, many performance indicators focus on aspects of performance that are measurable quantitatively but do not cover many (sometimes more essential) intangible effects.