Final answer:
Over the years 2012 to 2018, the United Arab Emirates is classified as an economically developed country based on United Nations Development Programme data, World Bank's World Development Indicators, and its high ranking on the Human Development Index.
Step-by-step explanation:
The economic development stage classification for the United Arab Emirates (UAE) over the years 2012 to 2018 can be determined using various sources, including the United Nations Development Programme and World Bank data. As of the period from 2012 to 2018, the UAE is generally classified as one of the economically developed countries. This classification is based on various development indicators and economic performance metrics such as GDP per capita, infrastructure development, social services, and overall quality of life.
Data sources such as the World Development Indicators by the World Bank and reports by the United Nations Development Programme provide evidence of the UAE's status as a developed nation. Additionally, the UAE consistently ranks high on the Human Development Index (HDI), which is used as a composite statistic of life expectancy, education, and per capita income indicators, further solidifying its developed status.
While exact classifications can change over time and are sometimes subject to debate, these reports and data are indicative of the country's strong economic position in the given years. However, it's important to consult the most recent data and reports for the latest classifications and assessments of a country's development stage.