The most commonly applied types of accessibility models are based on the gravity analogy. In these models, researchers use different types of resistance factors, but they rarely give any elaborate explanation for their choice of a specific type of factor in their research. Another problem with...

Institutional investors wanting to integrate Environmental, Social and Governance (ESG) factors in their investment strategies need the right tools to measure portfolio risk characteristics and performance. MSCI's BarraOne and Barra Portfolio Manager can provide this utility with Intangible...