Business Volatility, Job Destruction, and Unemployment
Steven J. Davis, R. Jason Faberman, John Haltiwanger, Ron S. Jarmin, Javier Miranda
American Economic Journal: Macroeconomics,
Nr. 2,
2010
Abstract
Unemployment inflows fell from 4 percent of employment per month in the early 1980s to 2 percent by the mid 1990s. Using low frequency movements in industry-level data, we estimate that a 1 percentage point drop in the quarterly job destruction rate lowers the monthly unemployment inflow rate by 0.28 points. By our estimates, declines in job destruction intensity account for 28 (55) percent of the fall in unemployment inflows from 1982 (1990) to 2005. Slower job destruction accounts for similar fractions of long-term declines in the rate of unemployment.
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Are European Equity Style Indices Efficient? – An Empirical Quest in Three Essays
Marian Berneburg
Schriften des IWH,
Nr. 28,
2008
Abstract
Many situations in the history of the stock markets indicate that assets are not always efficiently priced. But why does it matter whether the stock market is efficiently priced? Because “well-functioning financial markets are a key factor to high economic growth”. (Mishkin and Eakins, 2006, pp. 3-4) In three essays, it is the aim of the author to shed some more light on the topic of market efficiency, which is far from being resolved. Since European equity markets have increased in importance globally, the author, instead of focusing on US markets, looks at a unified European equity market. By testing for a random walk in equity prices, revisiting Shiller’s claim of excess volatility through the means of a vector error correction model, and modifying the Gordon-Growth-Model, the book concludes that a small degree of inefficiency cannot be ruled out. While usually European equity markets are pricing assets correctly, some periods (e.g. the late 1990s and early 2000s) show clear signs of mispricing; the hypothesis of a world with two states (regime one, a normal efficient state, and regime two, a state in which markets are more momentum driven) presents a possible explanation.
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Metformin-Therapie bei PCO-Syndrom - Positive Vierjahresbilanz des oralen Antidiabetikums
D. Albrecht, P. Kaltwasser, E. Rosenkranz, Dirk Trocka
MedReview,
2007
Abstract
Das Polyzystische Ovarialsyndrom (PCOS) ist mit einer Krankheitshäufigkeit von 4–12 % die häufigste endokrine Erkrankung der Frau im reproduktiven Alter. Neben dem unerfüllten Kinderwunsch stellt es ein hohes Risiko für metabolische (stoffwechselbedingte) und kardiovaskuläre (Herz und Blutgefäße betreffende) Erkrankungen dar. Die Studie stellt die ersten Ergebnisse der Behandlung des PCOS mit dem oralen Antidiabetikum Metformin in einer Vierjahres-Analyse dar und versucht Kriterien für den Einsatz des Arzneistoffes zu definieren.
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