Jungle By-Ways in India

Equilibrium in the Jungle Equilibrium in the Jungle *

In the jungle, power and coercion govern the exchange of resources. We study a simple, stylized model of the jungle that mirrors an exchange economy. We define the notion of jungle equilibrium and demonstrate that a number of standard results of competitive markets hold in the jungle. JEL Classification: C7, D4, S477, B201

Jungle Days

Computation in the Informatic Jungle

Informatics bridges Turing-computation and interactive behaviour; examples of the latter include ubiquitous/pervasive and biological systems. But how does a model of computation fit within a model of less disciplined informatic behaviour? This paper offers a precise treatment of that relationship, identifying a class of calculational bigraphical reactive systems. We show how such a system conta...

Implementing term rewriting by jungle evaluation

Jungles are acyclic hypergraphs which represent sets of terms such that common subterms can be shared. Term rewrite rules are translated into jungle evaluation rules which implement parallel term rewriting steps. By using additional hypergraph rules which “fold” equal subterms, even non-left-linear term rewriting systems can be implemented. As a side effect, these folding rules can speed up the...

Driving in the Jungle