Accounting for Real Exchange Rates Using Micro-data

The classical dichotomy predicts that all of the time series variance in the aggregate real exchange rate is accounted for by non-traded goods in the CPI basket because traded goods obey the Law of One Price. In stark contrast, Engel (1999) found that traded goods had comparable volatility to the aggregate real exchange rate. Our work reconciles these two views by successfully applying the classical dichotomy at the level of intermediate inputs into the production of final goods using highly disaggregated retail price data. Since the typical good found in the CPI basket is about equal parts traded and non-traded inputs, we conclude that the classical dichotomy applied to intermediate inputs restores its conceptual value.

Alien Registration- Landry, Patrick J. (Westbrook, Cumberland County)

https://digitalmaine.com/alien_docs/20750/thumbnail.jp

Alien Registration- Landry, Gerard J. (Auburn, Androscoggin County)

https://digitalmaine.com/alien_docs/31168/thumbnail.jp

Protostellar Disk Evolution Over Million-Year Timescales with a Prescription for Magnetized Turbulence

Magnetorotational instability (MRI) is the most promising mechanism behind accretion in low-mass protostellar disks. Here we present the first analysis of the global structure and evolution of non-ideal MRI-driven T-Tauri disks on million-year timescales. We accomplish this in a 1+1D simulation by calculating magnetic diffusivities and utilizing turbulence activity criteria to determine thermal structure and accretion rate without resorting to a 3-D magnetohydrodynamical (MHD) simulation. Our major findings are as follows. First, even for modest surface densities of just a few times the minimum-mass solar nebula, the dead zone encompasses the giant planet-forming region, preserving any compositional gradients. Second, the surface density of the active layer is nearly constant in time at roughly 10 g/cm2, which we use to derive a simple prescription for viscous heating in MRI-active disks for those who wish to avoid detailed MHD computations. Furthermore, unlike a standard disk with constant-alpha viscosity, the disk midplane does not cool off over time, though the surface cools as the star evolves along the Hayashi track. The ice line is firmly in the terrestrial planet-forming region throughout disk evolution and can move either inward or outward with time, depending on whether pileups form near the star. Finally, steady-state mass transport is a poor description of flow through an MRI-active disk. We caution that MRI activity is sensitive to many parameters, including stellar X-ray flux, grain size, gas/small grain mass ratio and magnetic field strength, and we have not performed an exhaustive parameter study here.Comment: Accepted for publication in Astrophysical Journal. 19 pages, including 8 figure

Nostalgic Selling: the Louisville & Nashville Railroad and its General Public Relations

This paper represents a case study of how to use historic events/artifacts in public relations and sales. It recounts how the Louisville & Nashville Railroad participated in the United States Civil War centennial celebrations by restoring a locomotive, the General, that was made famous in a daring raid conducted in that war. Using primary and secondary documents mainly from corporate archives including notes, operations manuals, public relations logs, measurements, corporate publications and oral history, the paper outlines the General’s iconic history, the purposes for its 1960s restoration to operation for the Civil War centennial, and the overarching marketing strategy behind the project