14,038 research outputs found
Jamming of directed traffic on a square lattice
Phase transition from a free-flow phase to a jammed phase is an important
feature of traffic networks. We study this transition in the case of a simple
square lattice network for different values of data posting rate by
introducing a parameter which selects a neighbour for onward data transfer
depending on queued traffic. For every there is a critical value of
above which the system become jammed. The phase diagram shows some
interesting features. We also show that the average load diverges
logarithmically as approaches and the queue length distribution
exhibits exponential and algebraic nature in different regions of the phase
diagram.Comment: 12 pages, 9 figure
South Asian Integration Prospects and Lessons from East Asia
In the context of the low levels of regional cooperation among South Asian countries when compared with the successful results from cooperation in East Asia (consisting of South East and East Asian countries), the objective of this paper is first to assess the prospects of cooperation among South Asian economies and then to draw lessons from East Asian regional experiments for South Asian regionalism for the betterment of these prospects. The main argument of the paper is that South Asia should adopt a twin-track approach : better integration within itself and better integration with rest of the world particularly East Asia. Both tracks would complement and supplement each other ensuring a greater chance of success.South Asian integration prospects, Lessons from East Asian regionalism, Open regionalism, Asian development
Determinants of Individual Investor Behaviour: An Orthogonal Linear Transformation Approach
Expected utility theory views the individual investment decision as a tradeoff between immediate consumption and deferred consumption. But individuals do not always prefer according to the classical theory of economics. Recent studies on individual investor behavior have shown that they do not act in a rational manner, rather several factors influences their investment decisions in stock market. The present study considers this theory of irrationality of individual investors and investigates into their behaviour relating to investment decisions. We examine whether some psychological and contextual factors affect individual investor behaviour and if yes which factors influences most. Extrapolating from previous literature on economics, finance and psychology, we surveyed individual investors to find what and to what extent affects their investment behaviour. Our conceptual analysis, empirical findings and the perspective framework that we have developed in the present study, provide five major factors that can influence individual investor behaviour in Indian stock market. The findings can be useful in profiling individual investors and designing appropriate investment strategies according to their personal characteristics, thereby enabling them optimum return on their investments.Individual investor, Psychological biases, Investment behaviour, Indian stock market, Behavioural economics.
South Asian Integration Prospects and Lessons from East Asia
In the context of the low levels of regional cooperation among South Asian countries when compared with the successful results from cooperation in East Asia (consisting of South East and East Asian countries), the objective of this paper is first to assess the prospects of cooperation among South Asian economies and then to draw lessons from East Asian regional experiments for South Asian regionalism for the betterment of these prospects. The main argument of the paper is that South Asia should adopt a twin-track approach: better integration within itself and better integration with rest of the world particularly East Asia. Both tracks would complement and supplement each other ensuring a greater chance of success.South Asian integration prospects, Lessons from East Asian regionalism, Open regionalism, Asian development
A Second Look at Single Photon Production in S+Au Collisions at 200 AGeV and Implications for Quark Hadron Phase Transition
We reanalyze the production of single photons in S+Au collisions at CERN SPS
to investigate: i) the consequences of using a much richer equation of state
for hadrons than the one used in an earlier study by us; and, ii) to see if the
recent estimates of photon production in quark-matter (at two loop level) by
Aurenche et al. are consistent with the upper limit of the photon production
measured by the WA80 experiment. We find that the measured upper limit is
consistent with a quark hadron phase transition. The measured upper limit is
also consistent with a scenario where no phase transition takes place, but
where the hadronic matter reaches a density of several hadrons per unit volume;
which is rather unphysical.Comment: 10 pages, including 3 figures; Submitted to Euro. Phys. Jour.
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