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Labor Market Shocks And Retirement: Do Government Programs Matter?, Courtney C. Coile, Phillip B. Levine
Labor Market Shocks And Retirement: Do Government Programs Matter?, Courtney C. Coile, Phillip B. Levine
Economics Faculty Scholarship
This paper examines how unemployment affects retirement and whether the Unemployment Insurance (UI) system and Social Security (SS) system affect how older workers respond to labor market shocks. To do so, we use pooled cross-sectional data from the March Current Population Survey (CPS) as well as March CPS files matched between one year and the next and longitudinal data from the Health and Retirement Survey (HRS). We find that downturns in the labor market increase retirement transitions. The magnitude of this effect is comparable to that associated with moderate changes in financial incentives to retire and to the threat of …
Assessing The Impact Of Job Loss On Workers And Firms, Kristin F. Butcher, Kevin F. Hallock
Assessing The Impact Of Job Loss On Workers And Firms, Kristin F. Butcher, Kevin F. Hallock
Faculty Research and Scholarship
No abstract provided.
Bulls, Bears, And Retirement Behavior, Courtney C. Coile, Phillip B. Levine
Bulls, Bears, And Retirement Behavior, Courtney C. Coile, Phillip B. Levine
Economics Faculty Scholarship
The authors examine the relationship between stock market performance and retirement behavior. They first present a descriptive analysis of the wealth holdings of older households and simulate the labor supply response among stockholders necessary to generate observed retirement patterns. Few house holds, they find, have substantial stock holdings, and these holdings would have to be extremely responsive to market fluctuations to explain observed labor force patterns. The authors then exploit stock market fluctuations since the early 1980s (particularly the boom and bust between 1995 and 2002), along with variation in stock exposure, to generate a double quasi-experiment, comparing the retirement …
Crater Gradation In Gusev Crater And Meridiani Planum, Mars, J. A. Grant, Raymond E. Arvidson, L. S. Crumpler, Matt P. Golombek, B. Hahn, A. F.C. Haldemann, Rongxing Li, L. A. Soderblom, Steven W. Squyres, S. P. Wright, Wesley Andres Watters
Crater Gradation In Gusev Crater And Meridiani Planum, Mars, J. A. Grant, Raymond E. Arvidson, L. S. Crumpler, Matt P. Golombek, B. Hahn, A. F.C. Haldemann, Rongxing Li, L. A. Soderblom, Steven W. Squyres, S. P. Wright, Wesley Andres Watters
Faculty Research and Scholarship
The Mars Exploration Rovers investigated numerous craters in Gusev crater and Meridiani Planum during the first ∼400 sols of their missions. Craters vary in size and preservation state but are mostly due to secondary impacts at Gusev and primary impacts at Meridiani. Craters at both locations are modified primarily by eolian erosion and infilling and lack evidence for modification by aqueous processes. Effects of gradation on crater form are dependent on size, local lithology, slopes, and availability of mobile sediments. At Gusev, impacts into basaltic rubble create shallow craters and ejecta composed of resistant rocks. Ejecta initially experience eolian stripping, …
Spatial Grain Size Sorting In Eolian Ripples And Estimation Of Wind Conditions On Planetary Surfaces: Application To Meridiani Planum, Mars, Douglas J. Jerolmack, David Mohrig, John P. Grotzinger, David A. Fike, Wesley Andres Watters
Spatial Grain Size Sorting In Eolian Ripples And Estimation Of Wind Conditions On Planetary Surfaces: Application To Meridiani Planum, Mars, Douglas J. Jerolmack, David Mohrig, John P. Grotzinger, David A. Fike, Wesley Andres Watters
Faculty Research and Scholarship
The landscape seen by the Mars Exploration Rover (MER) Opportunity at Meridiani Planum is dominated by eolian (wind-blown) ripples with concentrated surface lags of hematitic spherules and fragments. These ripples exhibit profound spatial grain size sorting, with well-sorted coarse-grained crests and poorly sorted, generally finer-grained troughs. These ripples were the most common bed form encountered by Opportunity in its traverse from Eagle Crater to Endurance Crater. Field measurements from White Sands National Monument, New Mexico, show that such coarse-grained ripples form by the different transport modes of coarse- and fine-grain fractions. On the basis of our field study, and simple …
Range Of The Fractional Weak Discrepancy Function, Alan Shuchat, Randy Shull, Ann N. Trenk
Range Of The Fractional Weak Discrepancy Function, Alan Shuchat, Randy Shull, Ann N. Trenk
Faculty Research and Scholarship
In this paper we describe the range of values that can be taken by the fractional weak discrepancy of a poset and characterize semiorders in terms of these values. In [6], we defined the fractional weak discrepancy wdF (P) of a poset P=(V,≺) to be the minimum nonnegative k for which there exists a function f:V→R satisfying (1) if a≺b then f(a)+1≤f(b) and (2) if a∥b then |f(a)−f(b)|≤k. This notion builds on previous work on weak discrepancy in [3, 7, 8]. We prove here that the range of values of the function wdF is the set of rational numbers …
Uncollected Short Stories: Lettre Du Cimetière, René Galand
Uncollected Short Stories: Lettre Du Cimetière, René Galand
French Faculty Scholarship
No abstract provided.