Gianluca Brero

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We consider the problem of clearing a system of interconnected banks that have been exposed to a shock on their assets. Eisenberg and Noe (2001) showed that when banks can only enter into simple debt contracts with each other, then a clearing vector of payments can be computed in polynomial time. In this paper, we show that the situation changes radically(More)
Several strategic interactions over social networks display both negative and positive externalities at the same time. E.g., participation to a social media website with limited resources is more appealing the more of your friends participate, while a large total number of participants may slow down the website (because of congestion effects) thus making it(More)
A well-known problem in combinatorial auctions (CAs) is that the value space grows exponentially in the number of goods, which often puts a large burden on the bidders and on the auctioneer. In this paper, we introduce a new design paradigm for CAs based on machine learning (ML). Bidders report their values (bids) to a proxy agent by answering a small(More)
In the first part the authors report a nosological review of the obstructions of the bladder neck and urethra in childhood and present the most typical radiological aspects of the most important obstructive uropathies. In the second part they illustrate their cases, that include 11 patients between 0 and 10 years, of which 4 males, with urethral valves; 2(More)
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