This paper argues that new immigrants cluster in culturally homogenous groups in the host country because of imperfect information. However, the pulling-effect exists provided that the cultural communities are not too large. With a panel of migration flows to the major OECD countries from the mid-1980s to the mid-1990s, it is shown that the existence of similar cultural communities does attract...

Problem: Analyze a (large) set of objects and form a smaller number of groups using the similarity and factual closeness between the objects. Goals: – Finding representatives for homogenous groups-> Data Reduction – Finding " natural " clusters and describe their unknown properties-> " natural " Data Types – Find useful and suitable groupings-> " useful " Data Classes – Find unusual data object...

Identifying homogeneous groups of stocks, where these stocks have similar movement of returns is called stock return comovement analysis. Stock return comovement analysis is important to financial analysts, decision makers, and academic researchers, in many financial implications. This paper examines firms’ social media, in particular, microblogging metrics’ role on analyzing stock return comov...

a r t i c l e i n f o Previous research has shown that the people in low status, negatively-valued groups are perceived to be more homogeneous than the people in high status, positively-valued groups. The present research investigated the possibility of an opposite effect in which people perceive positive groups to be more homogeneous than negative groups. The researchers hypothesized that winn...

The problem of oscillations detection for nonlinear systems is addressed. The notion of homogeneity in bi-limit from (Andrieu, et al., 2008) is extended to local homogeneity. Next, sufficient conditions of oscillations existence for locally homogeneous systems are formulated. The proposed approach allows one to estimate the number of limit cycles and the regions of their location. Efficiency of...