Quantification of Order in the Lennard-Jones System

We conduct a numerical investigation of structural order in the shifted-force Lennard-Jones system by calculating metrics of translational and bond-orientational order along various paths in the phase diagram covering equilibrium solid, liquid, and vapor states. A series of non-equilibrium configurations generated through isochoric quenches, isothermal compressions, and energy minimizations are also considered. Simulation results are analyzed using an ordering map representation [Torquato et al., Phys. Rev. Lett. 84, 2064 (2000); Truskett et al., Phys. Rev. E 62, 993 (2000)] that assigns to both equilibrium and non-equilibrium states coordinates in an order metric plane. Our results show that bond-orientational order and translational order are not independent for simple spherically symmetric systems at equilibrium. We also demonstrate quantitatively that the Lennard-Jones and hard sphere systems sample the same configuration space at supercritical densities. Finally, we relate the structural order found in fast-quenched and minimum-energy configurations (inherent structures).Comment: 35 pages, 8 figure

The effect of extreme response and non-extreme response styles on testing measurement invariance

Extreme and non-extreme response styles (RSs) are prevalent in survey research using Likert-type scales. Their effects on measurement invariance (MI) in the context of confirmatory factor analysis are systematically investigated here via a Monte Carlo simulation study. Using the parameter estimates obtained from analyzing a 2007 Trends in International Mathematics and Science Study data set, a population model was constructed. Original and contaminated data with one of two RSs were generated and analyzed via multi-group confirmatory factor analysis with different constraints of MI. The results indicated that the detrimental effects of response style on MI have been underestimated. More specifically, these two RSs had a substantially negative impact on both model fit and parameter recovery, suggesting that the lack of MI between groups may have been caused by the RSs, not the measured factors of focal interest. Practical implications are provided to help practitioners to detect RSs and determine whether RSs are a serious threat to MI

Globalization, growth and distribution in Spain 1500-1913

The endogenous growth literature has explored the transition from a Malthusian world where real wages, living standards and labor productivity are all linked to factor endowments, to one where (endogenous) productivity change embedded in modern industrial growth breaks that link. Recently, economic historians have presented evidence from England showing that the dramatic reversal in distributional trends – from a steep secular fall in wage-land rent ratios before 1800 to a steep secular rise thereafter – must be explained both by industrial revolutionary growth forces and by global forces that opened up the English economy to international trade. This paper explores whether and how the relationship was different for Spain, a country which had relatively poor productivity growth in agriculture and low living standards prior to 1800, was a late-comer to industrialization afterwards, and adopted very restrictive policies towards imports for much of the 19th century. The failure of Spanish wagerental ratios to undergo a sustained rise after 1840 can be attributed to the delayed fall in relative agricultural prices (due to those protective policies) and to the decline in Spanish manufacturing productivity after 1898

Complementary Resources and the Exploitation of Technological Innovations

Technological innovation often results when the resources of a small firm are combined with those of a large one. This is because small and large firms characteristically possess complementary resources whose combination can facilitate innovation success. The possession of complementary innovation-producing resources by small and large firms helps explain patterns of interaction among firms in dynamic, technology-based industries. Propositions are developed that outline how typical resources of small and large firms can be used to explain industry-level phenomena surrounding technological change

Zintl phases for thermoelectric devices

By converting waste heat into electricity and improving the efficiency of refrigeration systems, thermoelectric devices could play a significant role in solving today's energy problems. Increasing the thermoelectric efficiency (as measured by the thermoelectric material's figure-of-merit, zT) is critical to the development of this technology. Complex Zintl phases, in particular, make ideal candidates for thermoelectric materials because the necessary electron–crystal, phonon–glass properties can be engineered with an understanding of the Zintl chemistry. A recent example is the discovery that Yb14MnSb11, a transition metal Zintl compound, has twice the zT as the material currently in use at NASA. This perspective outlines a strategy to discover new high zT materials in Zintl phases, and presents results pointing towards the success of this approach

Meta-analyses of Post-acquisition Performance: Indications of Unidentified Moderators

Empirical research has not consistently identified antecedents for predicting post-acquisition performance. We employ meta-analytic techniques to empirically assess the impact of the most commonly researched antecedent variables on post-acquisition performance. We find robust results indicating that, on average and across the most commonly studied variables, acquiring firms’ performance does not positively change as a function of their acquisition activity, and is negatively affected to a modest extent. More importantly, our results indicate that unidentified variables may explain significant variance in post-acquisition performance, suggesting the need for additional theory development and changes to M&A research methods

Globalization, Growth and Distribution in Spain 1500-1913

The endogenous growth literature has explored the transition from a Malthusian world where real wages, living standards and labor productivity are all linked to factor endowments, to one where (endogenous) productivity change embedded in modern industrial growth breaks that link. Recently, economic historians have presented evidence from England showing that the dramatic reversal in distributional trends – from a steep secular fall in wage-land rent ratios before 1800 to a steep secular rise thereafter – must be explained both by industrial revolutionary growth forces and by global forces that opened up the English economy to international trade. This paper explores whether and how the relationship was different for Spain, a country which had relatively poor productivity growth in agriculture and low living standards prior to 1800, was a late-comer to industrialization afterwards, and adopted very restrictive policies towards imports for much of the 19th century. The failure of Spanish wage-rental ratios to undergo a sustained rise after 1840 can be attributed to the delayed fall in relative agricultural prices (due to those protective policies) and to the decline in Spanish manufacturing productivity after 1898.Growth, distribution, globalization, Spain

Globalization, growth and distribution in Spain 1500-1913

The endogenous growth literature has explored the transition from a Malthusian world where real wages, living standards and labor productivity are all linked to factor endowments, to one where (endogenous) productivity change embedded in modern industrial growth breaks that link. Recently, economic historians have presented evidence from England showing that the dramatic reversal in distributional trends – from a steep secular fall in wage-land rent ratios before 1800 to a steep secular rise thereafter – must be explained both by industrial revolutionary growth forces and by global forces that opened up the English economy to international trade. This paper explores whether and how the relationship was different for Spain, a country which had relatively poor productivity growth in agriculture and low living standards prior to 1800, was a late-comer to industrialization afterwards, and adopted very restrictive policies towards imports for much of the 19th century. The failure of Spanish wagerental ratios to undergo a sustained rise after 1840 can be attributed to the delayed fall in relative agricultural prices (due to those protective policies) and to the decline in Spanish manufacturing productivity after 1898.

The Institutional Framework of Ethnic Inclusion and Exclusion: A Cross-National Analysis of the Earnings of Foreigners in Germany and Immigrants in Canada

The European social-welfare model differs from the North American individualistic model in the patterns, more than the overall extent, of ethnic inclusion and exclusion. Focussing on foreigners in Germany and immigrants in Canada as illustrative cases, conventional earnings decomposition analysis is extended cross-nationally to highlight institutional effects, using the German Socio-Economic Panel (GSOEP) first wave for 1984, and the 1986 Canadian Census. German education and labor market institutions benefit low-skill migrants, but generate less earnings assimilation. Such assimilation in Canada is greater but varies more by ethnic and racial origins. Institutional frameworks may generate social imperatives shaping patterns of ethnic inclusion and exclusion, quite apart from national policies of citizenship or culture.

Globalization, Growth and Distribution in Spain 1500-1913

The endogenous growth literature has explored the transition from a Malthusian world where real wages, living standards and labor productivity are all linked to factor endowments, to one where (endogenous) productivity change embedded in modern industrial growth breaks that link. Recently, economic historians have presented evidence from England showing that the dramatic reversal in distributional trends – from a steep secular fall in wage-land rent ratios before 1800 to a steep secular rise thereafter – must be explained both by industrial revolutionary growth forces and by global forces that opened up the English economy to international trade. This paper explores whether and how the relationship was different for Spain, a country which had relatively poor productivity growth in agriculture and low living standards prior to 1800, was a late-comer to industrialization afterwards, and adopted very restrictive policies towards imports for much of the 19th century. The failure of Spanish wage-rental ratios to undergo a sustained rise after 1840 can be attributed to the delayed fall in relative agricultural prices (due to those protective policies) and to the decline in Spanish manufacturing productivity after 1898.Growth, distribution, globalization, Spain