Competition and the constant changes in technology and lifestyles have changed the face of banking in India. From a technological and cost-driven standpoint it may seem quite logical for banks to shift as many banking activities online as possible. Banking industry has revolutionised the...

This paper develops a wavelet (spectral) approach to test the presence of a unit root in a stochastic process. The wavelet approach is appealing, since it is based directly on the different behavior of the spectra of a unit root process and that of a short memory stationary process. By...

W ciągu 90 lat istnienia ekonometria rozwijała się burzliwie, szczególnie w ostatnich kilkudziesięciu latach. Zawdzięcza to przede wszystkim rozwojowi informatyki oraz komputeryzacji, które w niebagatelny sposób przyczyniły się do ułatwienia i przyspieszenia obliczeń...

• Demonstration of outstanding investment performance due to noise filtering of covariance matrices in optimum portfolio selection exercises. This demonstration is based on the out-of-sample simulation of rebalancing trading done daily, weekly, biweekly and monthly.• Exhibits of investment...

A few convincing “proofs of concept,” based on examples from finance, that demonstrate outstanding efficacy of the noise filtering algorithm. Applications of the noise filtering algorithm to the global economy and LIBOR surveillance that reveal hidden, nontrivial and unexpected dependencies

We exploit a unique feature of cryptocurrency markets to provide new evidence on how derivatives impact cash markets. In December 2017, the CME Group and CBOE Global Markets both introduced futures contracts on bitcoin (BTC) against USD, but not on any other cryptocurrency exchange rate pairs....

This paper models the structure of a financial market that is composed of two types of institutions, banks and securities or secondary markets. The model analyzes the development of the securities market as a way of trading off its lower cost of securitization with adverse selection due to...

The IAB employment subsample is now available for researchers in a third, anonymized version. Following the so-called basic file and the regional file from the IAB employment subsample, which encompassed the years 1975 to 1990, the actualized version of the basic file covers now the years 1975...

The paper proposes two estimation approaches for duration models that are subject to right censored observations and selection effects. Main focus is on accelerated duration models and the estimators that are of the limited information type, i.e. they are not based on a fully specified selection...