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Different kinetic models like the Avrami, Tobin and Urbanovici-Segal models have been applied for determining the isothermal crystallization kinetics of virgin poly(ethylene terephthalate) (PET) and PET/poly(methyl methacrylate) (PMMA) blends. The different compositions investigated were PET90/PMMA10, PET75/PMMA25 and PET50/PMMA50 [wt/wt%]. The experimental data was fitted using Solver, a non-l...

James Tobin, while universally acknowledged as one of the leading macroeconomists of the twentieth century, is less well remembered as a growth economist, despite his continuing interest in growth throughout his career. His early work placed him near the origins of modern growth economics. Robert Solow (2004, 657) recalls that Tobin “published ‘A Dynamic Aggregative Model’ at just the time when...