Egoistic vs Altruistic Motive

What is the motive that makes people participate in a survey?
Denmark has set ambitious targets of being independent of fossil energy in 2050. These targets demand a larger production of renewable energy. They also require that the consumers have to change their consumption in order to meet these improvements in energy efficiency (Energistyrelsen, 2016). So, how can companies attract its customers to cooperate with them? […]