This paper proposes a new methodology to build composite coincident and leading indexes. Based on a formal definition that requires that the first differences of the leading index is the best linear predictor of the first differences of the coincident index, it is shown that the notion of polynomial serial correlation common features can be used to build these composite variables. Concepts and ...

Prais (1958) showed that the standard CPI computed by most statistical agencies can be interpreted as a weighted average of household price indexes, where the weight of each household is determined by its total expenditures. In this paper, we decompose the difference between the standard CPI and a democratically weighted index (i.e., the CPI plutocratic gap) as the product of expenditure inequa...

The present study investigated and analyzed the clinical impact of sublobectomy on pulmonary functions.Changes in pulmonary function before and after sublobectomy were compared to the changes after lobectomy.Changes in the pulmonary function before and after sublobectomy and lobectomy did not exhibit remarkable differences in long-term effects. Surgery-related indexes of the sublobectomy group ...

Based on social network perspective, we developed a model about the knowledge sharing of communities of practice (CoPs), analyzed the knowledge sharing of CoPs from the view of the network density, network centrality, network structure. And we found out that only the above indexes are kept in appropriately level can stimulate the knowledge sharing in CoPs. The strong ties contribute to the tran...

A secure index is a data structure that allows a querier with a " trapdoor " for a word x to test in O(1) time only if the index contains x; The index reveals no information about its contents without valid trapdoors, and trapdoors can only be generated with a secret key. Secure indexes are a natural extension of the problem of constructing data structures with privacy guarantees such as those ...

background: to evaluate the situation in a district demographic and health indexes are of great  importance. the aim of this article is to analyze some demographic and health indexes in chadegan district during 2004-2009. methods: this was a descriptive study and the target population was the population of chadegan district from 2004-2009. data collection was done according to registered data i...

This article provides evidence for a link between cultural collectivism and indexes of governmentally initiated restriction both across nations and within one nation, both cross-sectionally and longitudinally. In Investigation 1, across U.S. states, an index of legislative restriction is positively related to an index of collective behaviors. In Investigation 2, across nations, an index of poli...

There is a dearth of literature on heat therapy and prostatitis. The therapies used different energy sources, including interstitial heat and microwaves, and were delivered both transrectally and transurethrally. Most data precede our present system of nomenclature and therefore are difficult to compare, even with the literature of their day. Validated instruments were rarely used to determine ...

This paper combines the CRSP market index with multiple factors to create a single multifactor index. Empirical tests of different indexes indicate that: (1) Sharpe ratios substantially increase and GRS test statistics decrease as multifactors are incrementally added index; (2) resultant significantly priced in cross-sectional associated beta loadings t-values exceeding 3.0 most cases.