Background -- Data and methods -- 2.1 Data -- 2.2 Methods to estimate the incidence of poverty -- 2.3 Methods to estimate other measures of poverty -- 2.4 Methods to estimate measures of inequality -- 2.5 Limitations of the analysis -- 2.6 Methods in global spatial regression analysis -- 2.7...

In fish schools the density varies per location and often individuals are sorted according to familiarity and/or body size. High density is considered advantageous for protection against predators and this sorting is believed to be advantageous not only to avoid predators but also for finding...