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Coalition Preclusion Contracts and Moderate Policies
(2016)CEPR Discussion PapersWe examine the effects of a novel political institution called Coalition Preclusion Contracts (CPCs) on the functioning of democracies with proportional representation. CPCs enable political parties to credibly exclude one or several parties from the range of coalitions they are prepared to envisage after elections. We consider a simple political game with a two-dimensional policy space in which three parties compete to form the government. ...Working Paper -
Gland Segmentation in Colon Histology Images: The GlaS Challenge Contest
(2016)arXivColorectal adenocarcinoma originating in intestinal glandular structures is the most common form of colon cancer. In clinical practice, the morphology of intestinal glands, including architectural appearance and glandular formation, is used by pathologists to inform prognosis and plan the treatment of individual patients. However, achieving good inter-observer as well as intra-observer reproducibility of cancer grading is still a major ...Working Paper -
Nanofocusing, shadowing, and electron mean free path in the photoemission from aerosol droplets
(2016)arXivWorking Paper -
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On the Security of Carrier Phase-based Ranging
(2016)arXivMulticarrier phase-based ranging is fast emerging as a cost-optimized solution for a wide variety of proximity-based applications due to its low power requirement, low hardware complexity and compatibility with existing standards such as ZigBee and 6LoWPAN. Given potentially critical nature of the applications in which phase-based ranging can be deployed (e.g., access control, asset tracking), it is important to evaluate its security ...Working Paper -
Money Creation, Monetary Policy, and Capital Regulation
(2016)CEPR Discussion PapersWe develop a general equilibrium model to study money creation by private banks and examine the impact of monetary policy and capital regulation. There are two production sectors, financial intermediation, aggregate shocks, safe deposits, and two types of money creation: private deposits when banks grant loans to firms or to other banks and central bank money when the central bank grants loans to private banks. We show that in the baseline ...Working Paper -
An Appraisal of History-bound Reelections
(2016)CEPR Discussion PapersIn this paper we introduce history-bound reelections. In their simplest form, they are embodied in a "Score-replication Rule". Under such rules an incumbent has to match the highest vote-share he/she has obtained in any previous election in order to be reelected. We develop a simple three-period model to examine Score-replication Rules. We show that suitable variants of such rules can improve welfare as they reduce the tendency of reelected ...Working Paper -
Hacking in the Blind: (Almost) Invisible Runtime UI Attacks on Safety-Critical Terminals
(2016)arXivMany terminals are used in safety-critical operations in which humans, through terminal user interfaces, become a part of the system control loop (e.g., medical and industrial systems). These terminals are typically embedded, single-purpose devices with restricted functionality, sometimes air-gapped and increasingly hardened. We describe a new way of attacking such terminals in which an adversary has only temporary, non-invasive, ...Working Paper -
Contracting geodesics in infinitely presented graphical small cancellation groups
(2016)arXivWorking Paper