section_path: Measurement
section_name: Measurement
paragraph_text: Measurement
  
  People have been trying to measure happiness for centuries. In 1780, the English utilitarian philosopher Jeremy Bentham proposed that as happiness was the primary goal of humans, it should be measured as a way of determining how well the government was performing.
  
  Today, happiness is typically measured using self-report surveys. Self-reporting is prone to cognitive biases and other sources of errors, such as peak–end rule. Studies show that memories of felt emotions can be inaccurate. Affective forecasting research shows that people are poor predictors of their future emotions, including how happy they will be.
  
  Happiness economists are not overly concerned with philosophical and methodological issues and continue to use questionaries to measure average happiness of populations.
  
  Several scales have been developed to measure happiness:
  
  Since 2012, a World Happiness Report has been published. Happiness is evaluated, as in "How happy are you with your life as a whole?", and in emotional reports, as in "How happy are you now?," and people seem able to use happiness as appropriate in these verbal contexts. Using these measures, the report identifies the countries with the highest levels of happiness. In subjective well-being measures, the primary distinction is between cognitive life evaluations and emotional reports.
  
  The UK began to measure national well-being in 2012, following Bhutan, which had already been measuring gross national happiness.
  
  Academic economists and international economic organizations are arguing for and developing multi-dimensional dashboards which combine subjective and objective indicators to provide a more direct and explicit assessment of human wellbeing. There are many different contributors to adult wellbeing, such as the point that happiness judgements partly reflect the presence of salient constraints, and that fairness, autonomy, community and engagement are key aspects of happiness and wellbeing throughout the life course. Although these factors play a role in happiness, they do not all need to improve simultaneously to help one achieve an increase in happiness.
  
  Happiness has been found to be quite stable over time.