In machine learning and data science literature, clustering is the task of dividing the observations (data points) into several categories in such a way that data points falling into one group are being dissimilar than the data points falling to the other groups such that the variation within a...

This paper features an analysis of cryptocurrencies and the impact of the COVID-19 pandemic on their effectiveness as a portfolio diversification tool and explores the correlations between the continuously compounded returns on Bitcoin, Ethereum and the S&P500 Index using a variety of parametric...

This study tests the efficiency and profitability of banks that belongs to two different sectors: a) Islamic Banks (IBs) and b) Traditional Banks (TBs). The study concentrates on the pre and post 2008 financial crisis with an aim to test if there are any significant differences in performance...

Purpose This paper critically reviews and analyzes the trends in waqf studies within the Islamic economics literature. It analyzes the recent developments and debates in waqf reform and advances the argument for prioritizing research on waqf economics; the waqf dimension that is concerned with...

Der folgende Beitrag zeichnet die Anfänge der Behandlung des Bodens in der Geschichte der ökonomischen Theorie und in der dazu korrespondierenden politischen Praxis nach. Eine zentrale Rolle spielt die Kritik am Privatbesitz am Boden, aus der dann die Forderung nach einer Besteuerung des...

Most papers which study the world trade network use indicators that suffer from an absence of economic content. Understanding this problem, we propose an alternative methodology to describe the international trade using a network perspective, but recovering the economic interpretation. The...

Morton and Wecker (1977) stated that the value iteration algorithm solves a dynamic program's policy function faster than its value function when the limiting Markov chain is ergodic. I show that their proof is incomplete, and provide a new proof of this classic result. I use this result to...

This paper proposes an approach to proving nonparametric identification for distributions of bidders’ values in asymmetric second-price auctions. I consider the case when bidders have independent private values and the only available data pertain to the winner’s identity and the transaction...

This article presents a new approach to analyze the equilibrium set of symmetric, differentiable games by separating multiple symmetric equilibria and asymmetric equilibria. This separation allows the investigation of, for example, how various parameter constellations affect the scope for...

Filtering has had a profound impact as a device of perceiving information and deriving agent expectations in dynamic economic models. For an abstract economic system, this paper shows that the foundation of applying the filtering method corresponds to the existence of a conditional expectation...