A study of exchange rate modelling.

This paper presents a study in the mainstream of ex-change rate modelling. The literature survey begins with an historical sec-tion, tracing the origins of many presently used prin-ciples and concepts to debates that started over two cen-turies ago. Literature on balance of payments determina-tion is. included as relevant to this survey. The elasti-cities, absorption, and monetary approaches are presented as three basic models which have often served as skele-tons on which recent attempts at modelling exchange rates have been built. Various individual components or aspects of exchange rate modelling are then discussed--components such as expectation formation assumptions, stock and flow effects, and flexibility of prices, whic

Олесь Бабій - співець слави січових стрільців

The Salamanca Formation of the San Jorge Basin (Patagonia, Argentina) preserves critical records of Southern Hemisphere Paleocene biotas, but its age remains poorly resolved, with estimates ranging from Late Cretaceous to middle Paleocene. We report a multi-disciplinary geochronologic study of the Salamanca Formation and overlying Río Chico Group in the western part of the basin. New constraints include (1) an 40Ar/39Ar age determination of 67.31 ± 0.55 Ma from a basalt flow underlying the Salamanca Formation, (2) micropaleontological results indicating an early Danian age for the base of the Salamanca Formation, (3) laser ablation HR-MC-ICP-MS (high resolution-multi collector-inductively coupled plasma-mass spectrometry) U-Pb ages and a high-resolution TIMS (thermal ionization mass spectrometry) age of 61.984 ± 0.041(0.074)[0.100] Ma for zircons from volcanic ash beds in the Peñas Coloradas Formation (Río Chico Group), and (4) paleomagnetic results indicating that the Salamanca Formation in this area is entirely of normal polarity, with reversals occurring in the Río Chico Group. Placing these new age constraints in the context of a sequence stratigraphic model for the basin, we correlate the Salamanca Formation in the study area to Chrons C29n and C28n, with the Banco Negro Inferior (BNI), a mature widespread fossiliferous paleosol unit at the top of the Salamanca Formation, corresponding to the top of Chron C28n. The diverse paleobotanical assemblages from this area are here assigned to C28n (64.67–63.49 Ma), ∼2–3 million years older than previously thought, adding to growing evidence for rapid Southern Hemisphere floral recovery after the Cretaceous-Paleogene extinction. Important Peligran and “Carodnia” zone vertebrate fossil assemblages from coastal BNI and Peñas Coloradas exposures are likely older than previously thought and correlate to the early Torrejonian and early Tiffanian North American Land Mammal Ages, respectively

A New Omomyid Primate from the Earliest Eocene of Southern England: First Phase of Microchoerine Evolution

Hooker, J.J. 2012. A new omomyid primate from the earliest Eocene of southern England: First phase of microchoerin

Linking the Wasatchian/Bridgerian Boundary to the Cenozoic Global Climate Optimum: New Magnetostratigraphic and Isotopic Results from South Pass, Wyoming

Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/148643/1/Clyde_et_al_2001_Palaeo-3-EECO_geochronology_in_Wyoming.pd