Some New World Lessons for the Old World

Some New World Lessons for the Old World

Old World Econometrics and New World Theory

This paper summarizes recent work on the econometrics of identification in rational expectations models by myself and Andreas Beyer. In this work, we discuss the relationship between structure and reduced form in linear rational expectations models and we apply our analysis to a class of new Keynesian models that are frequently used to inform the policy debate. We argue that the identifying ass...

Old new world

This spring sees two major anniversaries in the colonial history of Europe: Britain is commemorating the 200th anniversary of the abolition of its until then lucrative but cruel slave trade, and the US marks the 400th anniversary of the first permanent European settlement in Jamestown. The British Museum is also showing a collection of paintings and illustrations it holds, which represent the f...

The Old-World genus Ceratothripoides (Thysanoptera: Thripidae) with a new genus for related New-World species

A key is provided to five Old World species that comprise the genus Ceratothripoides Bagnall, and the species C. revelatus (Priesner) is recalled from synonymy with C. brunneus Bagnall. Five New World species previously placed in this genus are here allocated to Retanathrips Mound & Nickle gen.n., with Physothrips funestus Hood as type species.

New World tetraploid cottons contain Old World cytoplasm.

New World tetraploid cottons (Gossypium spp.) originated through hybridization of ancestral diploid species that presently have allopatric ranges in Asia-Africa (the A genome) and the New World tropics and subtropics (the D genome). Despite intensive study, the identity of the parental diploids and the antiquity of polyploidization remain unresolved. In this study, variation in the maternally i...