Abstract This study examines the recent debacle of Asian‐Pacific stock markets by utilizing theory cointegration to investigate which developing are moved Japan and United States. The empirical evidence suggests that some countries dominated US, Japan, remaining neither during time period investigated. appropriate error correction model is estimated used perform out‐of‐sample forecasting.

Each stage of the human life course is characterized by a distinctive pattern social relations. We study how intensity and importance closest contacts vary across course, using large database mobile communication from European country. first determine most likely relationship type these phone records relating age gender caller recipient to frequency, length, direction calls. then show patterns between parents children, romantic partner, friends six main stages adult family course. Young...

Age and gender are two important factors that play crucial roles in the way organisms allocate their social effort. In this study, we analyse a large mobile phone dataset to explore life history influences human sociality networks structured. Our results indicate these aspects of behaviour strongly related age such younger individuals have more contacts and, among them, males than females. However, rate decrease number with differs between females, there is reversal around late 30s. We...

Social networks require active relationship maintenance if they are to be kept at a constant level of emotional closeness. For primates, including humans, failure interact leads inexorably decline in quality, and consequent loss the benefits that derive from individual relationships. As result, many social species compensate for weakened relationships by investing more heavily them. Here we study how humans behave similar situations, using data mobile call detail records European country....

Citations measure the importance of a publication, and may serve as proxy for its popularity quality contents. Here we study distributions citations to publications from individual academic institutions single year. The average number have large variations between different across world, but probability can be rescaled common form by scaling that institution. We find this feature seems universal broad selection irrespective per article. A similar analysis in particular journal year reveals...

We study the influence of seasonally and geographically related daily dynamics daylight ambient temperature on human resting or sleeping patterns using mobile phone data a large number individuals. observe two inactivity periods in people's aggregated calling infer these to represent times population. find that nocturnal period is strongly influenced by length daylight, its seasonal variation depends latitude, such for people living different cities separated eight latitudinal degrees,...

Timings of human activities are marked by circadian clocks which in turn entrained to different environmental signals. In an urban environment the presence artificial lighting and various social cues tend disrupt natural entrainment with sunlight. However, it is not completely understood what extent this case. Here we exploit large-scale data analysis techniques study mobile phone calling activity people large cities infer dynamics daily rhythms. From patterns about 1,000,000 users spread...

We study the dynamics of a few stochastic learning strategies for 'Kolkata Paise Restaurant' problem, where N agents choose among equally priced but differently ranked restaurants every evening, such that each agent tries to get dinner in best restaurant (with serving only one customer and rest customers arriving there going without evening). consider be similar all agents, assume follows same probabilistic or strategy dependent on information about past successes game. show some 'naive'...

In human relations individuals' gender and age play a key role in the structures dynamics of their social arrangements. order to analyze preferences individuals interaction with others at different stages lives we study large mobile phone dataset. To do this consider four fundamental gender-related caller callee combinations interactions, namely male male, female, female which together age, kinship, levels friendship give rise wide scope sociality. Here analyse relative strength these types...

Abstract In this paper we extend the traditional price change hedge ratio estimation method by applying theory of cointegration to hedging with stock index futures contracts for France (CAC 40), United Kingdom (FTSE 100), Germany (DAX), and Japan (NIKKEI). Previous studies ignore last period's equilibrium error short‐run deviations. The findings study indicate that ratios obtained from correction are superior those as evidenced likelihood test out‐of‐sample forecasts. Using procedures...

We study a resource utilization scenario characterized by intrinsic fitness. To describe the growth and organization of different cities, we consider model for where many restaurants compete, as in game, to attract customers using an iterative learning process. Results case with uniform fitness are reported. When is uniformly distributed, it gives rise Zipf law number customers. perform exact calculation fraction when choices made independent A variant also introduced can be treated ability...

Social inequalities are ubiquitous, and here we show that the values of Gini ([Formula: see text]) Kolkata indices, two generic inequality approach each other (starting from [Formula: text] for equality) as competitions grow in various social institutions like markets, universities elections. It is further shown these indices become equal stabilize at a value (at under unrestricted competitions. We propose to view this coincidence generalized version (more than a) century old 80-20 law...

We show that in a variant of the minority game problem, agents can reach state maximum social efficiency, where fluctuation between two choices is minimum, by following simple stochastic strategy. By imagining scenario only guess about number excess people majority, we as long guessed value sufficiently close to reality, system full efficiency or minimum fluctuation. A continuous transition less efficient condition observed when becomes worse. Hence, optimize their for population period...

We define and study a class of resources allocation processes where $gN$ agents, by repeatedly visiting $N$ resources, try to converge optimal configuration each resource is occupied at most one agent. The process exhibits phase transition, as the density $g$ agents grows, from an absorbing active phase. In latter, even if number in principle enough for all ($g<1$), system never settles frozen configuration. recast these terms zero-range interacting particles, studying analytically mean...