New Unidimensional Indexes for China

New Unidimensional Indexes for China

A first principal component combines several indicators so as to maximize their internal consistency for measuring a construct. First principal components are extracted here from Swiss Economic Institute and World Bank datasets containing yearly societal indicators for China. These indicators are input to population-weighted regressions without recourse to survey sampling or probabilistic infer...

Perhaps Unidimensional Is Not Unidimensional

Miller (1956) identified his famous limit of 7 ± 2 items based in part on absolute identification-the ability to identify stimuli that differ on a single physical dimension, such as lines of different length. An important aspect of this limit is its independence from perceptual effects and its application across all stimulus types. Recent research, however, has identified several exceptions. We...

Vaught's conjecture for unidimensional theories

In Bue93b] we proved Vaught's conjecture for all superstable theories of nite rank; that is, such a theory has countably many or continuum many countable models. While this proof does settle Vaught's conjecture for unidimensional theories a sharper result can be obtained for these theories and in places the proof can be simpliied. Let T be a properly unidimensional theory with < 2 @ 0 many coun...

Leading Economic Indexes for New York State and New Jersey

espite the unusual length of the current expansion, few economists are ready to repudiate the business cycle. In particular, imbalances in the U.S. economy may develop rather quickly and result in either a slowdown or actual contraction in economic activity. The pattern of recurrent transitions between periods of economic expansion and contraction is of practical interest to consumers, business...

Unidimensional Scaling