The Government can use data such as population and employment as well as all related data areas such as population density, ethnicity and gender to plan for infrastructure development such as roads, hospitals and police forces. Demographic data are often collected by public and private census agencies, which can use them for research, marketing and development of the environment and human resources. For example, in areas with a high population density in Latin America, fast food restaurants often offer Mexican cuisine, unlike Mediterranean restaurants. This is all thanks to demographic research using demographic data. In terms of employment, we have employment and unemployment rates that may be more related to gender and ethnicity.