Predicting the occurrence of extreme prices, so-called spikes, is one of the greatest challengeswhen modeling electricity spot prices. Despite the fact that recently new insights have beenachieved, the contemporaneous literature seems to be still at its beginning of understanding...

The microfinance sector is an example of a sector in which firms with different business models coexist. Next to pure for-profit microfinance institutions MFIs, the sector has room for non-profit organizations, and includes social for-profit firms that aim to maximize a double bot- tom line and...