Given recent history it may be necessary to recall that the so-called Great Recession we have been witnessing for more than five years now was, first and foremost, a crisis of financial markets. One reason for rising debt levels at the outset of the crisis have been massive government...

Allowing for time-varying risk premia yields sophisticated asset pricing models, but the search for adequate model specifications is more challenging. We introduce, to our knowledge, previously in conditional asset pricing not used Group Method of Data Handling (GMDH) that rests on sorting out...

Arbitrage pricing plays an important role in asset valuation. The most applications of arbitrage asset pricing theories are based on the law of one price or asymptotic arbitrage free markets. We provide some new results on arbitrage and especially the arbitrage pricing theory by distinguishing...