Cohorts in Marketing. Similar to demographics, cohorts use quantifiable descriptors to identify target markets. Demographics, however, are the quantifiable descriptors themselves, such as the aforementioned age and household income.
The highest peaks are over 2,000 m (6,600 ft). Beijing Municipality consists of six city districts (previously eight, see Xuanwu and Chongwen), eight suburban districts and two rural counties. It covers a total area of 16,807.8 km2 (6,489.5 sq mi).
Falling Urban Densities: Even so, Beijing is far less dense than before. Deng and Huang at the State University of New York, Albany, place the 1949 urban land area at less than 25 square miles (63 square kilometers.