This demographic development has consequences for health care and social security policy. As the Dutch population ages, the proportion of people of working age, as a percentage of the entire population, decreases. Important policy advisors like the CBS (Statistical Office) and the CPB (Planning Office) have pointed out that this will cause problems with the current system of old age pensions: fewer people will work to pay for old age pensions, while there will be more people receiving those pensions. Furthermore, the costs of health care are also projected to increase. These developments have caused several cabinets, notably the second Balkenende cabinet to reform the system of health care and social security to increase participation in the labour market and make people more conscious of the money they spend on health care.