Unlike the conventional case of using cellular automata, we use a system of differential equations to study the self-organized criticality of physical systems. We see that it is not uncommon for some physical quantities, such as power loss, of the system to exhibit 1/f scaling in our new model....

Hypothesis Testing Minority Game (HMG) is a variant of the standard Minority Game (MG) that models the inertial behavior of agents in the market. In the earlier study of our group, we find that agents cooperate better in HMG than in the standard MG when strategies are picked from the full...

Real-world networks process structured connections since they have non-trivial vertex degree correlation and clustering. Here we propose a toy model of structure formation in real-world weighted network. In our model, a network evolves by topological growth as well as by weight change. In...

By means of non-linear dynamics, we show that the critical car densities of both the two-dimensional Biham-Middleton-Levine and the green wave traffic models are strictly less than 1/2.

Software vulnerabilities represent a serious threat to cyber security: most cyber-attacks exploit known vulnerabilities. Unfortunately, there is no agreed-upon policy for their disclosure. Disclosure policy (protected period given to a vendor to patch the vulnerability) indirectly affects the...

Auctions are widely used online to conduct commercial transactions. An important feature of online auctions is that even bidders who intend to buy a single object frequently have the opportunity to bid in sequential auctions selling identical objects. This paper studies key features of the...

This paper exploits a short-lived cooperation program between the U.S.S.R. and China, which led to the construction of 156 “Million-Rouble plants” in the 1950s. We isolate exogenous variation in location decisions due to the relative position of allied and enemy airbases and study the...