[Show abstract] [Hide abstract] ABSTRACT: Computing the phylogenetic diversity of a set of species is an important part of many ecological case studies. More specifically, let \(\mathcal {T}\) be a phylogenetic tree, and let R be a subset of its leaves representing the species under study. Specialists in ecology want to evaluate a function \(f(\mathcal {T},R)\) (a phylogenetic measure) that quantifies the evolutionary distance between the elements in R.
buying behaviour noun [U]. âº MARKETING, COMMERCE the way that âpeople âbehave when they âbuy things, such as what they âbuy, where and when they âshop, and how much they âspend: Higher âenergy âcosts âprompted many âgrocery âshoppers to âchange their âbuying âbehaviour last âyear.
Cost behavior refers to the way different types of production costs change when there is a change in level of production activity. There are three types of costs by behavior: Fixed, Variable and Mixed.