This book presents the proceedings from ECONOPHYS-2015an international workshop held in New Delhi, India, on the interrelated fieldsof "econophysics" and "sociophysics", which have emerged from the applicationof statistical physics to economics and sociology. Leading researchers fromvaried communities, including economists, sociologists, financial analystsmathematicians, physicists, statisticians, and others, report on their recentwork, discuss topical issues, and review the relevant contemporary literature.

Anindya S.Chakrabarti, Topology of the international trade network: size, asymmetry andvolatility.- Attilio Stella, Optimal growth in the network of global economy.- BikasK. Chakrabarti, Inequality in Societies, Academic Institutions & ScienceJournals: Gini & k-indices.- Damien Challet, Market nanostructure insightinto market stylized facts.- Deepak Dhar, Dynamical networks of agents withdegree preference.- Diego Garlaschelli, Network reconstruction, systemic riskand early-warning signals.- Dipankar Gupta, Boundaries, Transgressions andDisciplinary Dynamics.- Emanuele Pugliese, New Metrics for Economic Complexity.Fabrizio Lillo, Complex network methods for systemic risk assessment.- FrédéricAbergel, Imperfections of financial markets: a limit order book perspective.- HarbirLamba, Modelling momentum traders in a financial market usingPrandtl-Ishlinskii operators.- Hideaki Aoyama, Deflation and Money.- IrenaVodenska, Bi-partite network approach to predictabilityof financial marketsand news sentiments.- János Kertész, Kinetics of Social Contagion.- JoshinMurai, A model of order signs under multiple order splitting and publicinformation.- Karmeshu, Stochastic Modelling of High Frequency Intra-day StockReturns: Emergence of Cubic Power-Law.- Kimmo Kaski, Social Physics: Studies ofin vivo / in situ human sociality.- Kousik Guhathakurta, Comparing thecomplexity of emerging and developed stock markets using recurrence networkanalysis.- M.S. Santhanam, Records statistics and financial time series.- MarcoPatriarca, The microscopic origin of the Pareto law and other power-lawdistributions.- Matteo Marsili, Complexity driven collapse of economicequilibria.- Michele Caraglio, Bridging intraday and interday market behaviorthrough scaling.- Parongama Sen, Segregation dynamics with continuously varyingutility factor.- Sandeep Juneja, Nearest neighbor based and other popularmethods for pricing Bermudan options.- Sitabhra Sinha, Loss of structuralbalance in the network of cross-correlations characterizing a financial marketsignals the onset of major economic crisis.- Stanislao Gualdi, A dynamic modelof input-output production networks: general equilibrium stability andemergence of scale-free structures.- Taisei Kaizoji, Why does the power law forshare price hold?.- Takaaki Ohnishi, Real estate valuation using k-nearestneighbor regression.- Takayuki Mizuno, Statistically detecting stock bubblesbefore they burst.- Victor Yakovenko, Economic inequality from statisticalphysics point of view.- Yoshi Fujiwara, Quantifying Financial Distress in aNation-wide Production Network.- Yoshiyuki Arata, Macroeconomic Consequences ofLumpy Investment under Uncertainty.- Youngna Choi, Tracking FinancialInstability Contagion: modeling and data calibration.- Yuichi Ikeda, Communityand Controllability of Global Production Network: Focusing on the EconomicCrisis of 2008.