The current economic crisis illustrates a critical need for new and fundamental understanding of the structure and dynamics of economic networks. Economic systems are increasingly built on interdependencies, implemented through trans-national credit and investment networks, trade relations, or supply chains that have proven difficult to predict and control. We need, therefore, an approach that ...

Financial institutions are increasingly using economic capital models to help determine the amount of capital they need to absorb unexpected losses. These models typically aggregate capital based on business-level analysis. However, important challenges surround this aggregation as well as other aspects of these models. Supervisors could use these capital calculations when they assess capital a...

Background National/social health insurance schemes have increasingly been seen in many low- and middle-income countries (LMICs) as a vehicle to universal health coverage (UHC) and a viable alternative funding mechanism for the health sector. Several countries, including Ghana, have thus introduced and implemented mandatory national health insurance schemes (NHIS) as part of reform efforts towa...