Bertrand M. Roehner Libri

Exploring the intersection of network science with social and historical phenomena, this book delves into the quantitative analysis of social interactions often overlooked in traditional studies. It bridges physics and sociology through network theory, examining both macro and micro-level interactions within societies. Each chapter is self-contained, catering to readers' specific interests. This multi-disciplinary approach appeals to physicists interested in human sciences and offers fresh insights for graduate students and researchers in sociology and econophysics.

Focusing on the intersection of economics and physics, this 2002 student text offers a unique perspective on economic principles. It introduces key concepts in economics through the lens of physical theories, providing a fresh approach to understanding economic dynamics. The book is designed to engage students with its innovative methodology, making complex ideas more accessible and relatable.

Focusing on network theory, this 2007 book serves as a comprehensive resource for graduate students and researchers in sociology and econophysics. It integrates various disciplines to explore the complexities of networks, providing insights into their structure and dynamics. The text emphasizes both theoretical frameworks and practical applications, making it a valuable reference for those studying social networks and economic systems.

Focusing on spatial arbitrage, this book delves into the fundamental mechanisms of commodity markets, specifically examining price fluctuations in single commodity markets. It intentionally sets aside complex factors like quotas and exchange rates to clarify the core processes of trade and spatial transactions. By simplifying the study, the author systematically models spatial differentials and their connection to trade volume in both equilibrium and non-equilibrium scenarios. The exploration of "analytical economics" will be addressed in the concluding chapter.

This book contains a unified mathematical theory of speculation. Besides analysing stock markets, the book considers a wide range of speculative markets such as: real estate, commodities, postage-stamps, and antiquarian books. Various regularities are discussed. For instance, during a speculative episode, the price of expensive items increases more than the price of less expensive items. Such regularities pave the way for a mathematical theory of speculation. Being mainly empirical, the book is easy to read and does not require technical prerequisites in finance, economics or mathematics.

Book titles, because they are compromises between concision and precision, provide but an approximate description of real content. For this book an al ternative and more comprehensive title would be: An investigation of spatial arbitrage as an introduction to the theory of commodity markets: trade and space-time patterns of price fluctuations. In this title, both the specificities and the limitations of our approach are emphasized. Firstly, our approach con centrates on the basic mechanisms of spatial arbitrage, leaving aside a number of accessory facets of international trade such as the impact of quotas or of ex change rates. Secondly, for the sake of simplicity we restrict ourselves to single commodity markets; the interrelationship of different goods on multi-commodity markets are only occasionally mentioned. The previous restrictions, however drastic they may at first appear delimit and define what can be considered as the core of the process of trade and of spatial transactions. Having thus simplified the object of our study, we are able to tackle the problem in a systematic way and to model spatial differentials along with their relationships to the volume of trade both in eqUilibrium and in non-equilibrium situations. As far as the subtitle of the book is concerned, we shall postpone the discussion of what is meant by the expression „analytical economics“ until the concluding chapter.