- Comment: 14 pages, 2 tables, 6 figures. Submitted We formulate the head-to-head matchups between Major League Baseball pitchersand batters from 1954 to 2008 as a bipartite network of mutually-antagonisticinteractions. We consider both the full network and single-season networks,which exhibit interesting structural changes over time. We also find that thesenetworks exhibit a significant network structure that is sensitive tobaseball's rule changes. We then study a biased random walk on the matchupnetworks as a simple and transparent way to compare the performance of playerswho competed under different conditions. We find that a player's position inthe network does not correlate with his success in the random walker rankingbut instead has a substantial effect on its sensitivity to changes in his ownaggregate performance.
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posted to Paul Kedrosky's Infectious Greed on Thu 6th Aug 09
Stink boats and the forthcoming inventory bounce (Bronte)At China urging, U.S. upping TIPS issuance (WSJ)Bank of Japan now surveying sex shops (Bloomberg) Lenders ban old risky practices, only to come up with new ones (BusinessWeek)Why CNBCs ratings are down
posted to Abnormal Returns on Wed 5th Aug 09
Signs that investor sentiment is getting stretched. (Big Picture, The Technical Take)Corporate bonds (investment grade and high yield) are rocking. Does a mean-reversion strategy work timing the two? (EconomPic Data)Junk stocks (literally) have outperformed