In this comment, I extend Cavalcanti and Nosal’s (2010) framework to include the case of perfectly divisible money and unrestricted money holdings. I show that when trade takes place in Walrasian markets, counterfeits circulate and the Friedman rule is still optimal.

Traces of RFID-equipped item can be used to detect counterfeits. Nevertheless companies are reluctant to share the necessary traces, since it is unclear what can be inferred from them. In this paper we present a provably secure pattern matching algorithm that can be used for distributed anomaly detection. We improve performance and detection capabilities compared to competing approaches by stor...

Polymer banknotes are the trend for printed currency and have been adopted by more than fifty countries worldwide. However, over past years, quantity of polymer counterfeits has increasing, so quality counterfeits. This shows that initial advantage bringing a new technology to fight against counterfeiting is reducing. To maintain one step ahead counterfeiters, we propose novel anti-counterfeiti...

A bio-inspired detector the size of a US penny can identify unique odor profiles different gases, something that could help in detecting food freshness and product counterfeits designing new cosmetics.

This paper describes both hardware and software components to detect counterfeits of Euro banknotes. The system is also able to recognize the banknote values. The proposed method makes use of images acquired with near infrared camera and works without mechanical parts. This makes the overall system low-cost. The effectiveness of the proposed solution has been properly tested on a dataset compos...

the worst of all. Osteo-arthritis has the advantage of ?. recognition, but is not understood by the laity: and it is p important for the laity to distinguish this malady fr01^? j^y counterfeits. But first, it must be decisively recognise" Q[ medical men themselves. Two splendid opportunities ^ educating junior practitioners and senior students have ^ virtually thrown away. The writer on this su...