This widely used method of calculating returns considers a portfolio's cash flows Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles ...

Computational models are mathematical models used to numerically study the behaviour of complex systems by means of a computer simulation. A computational model can be used to make predictions of the ...

Primary research can be carried out in a number of different ways, for example surveys, questionnaires, focus groups or observations. A questionnaire is a set of questions to find out customers’ ...