1,235 research outputs found
Letter from Alexander T. Vogelsang to Mr. Snyder regarding the Havasupai reservation with draft of proposed bill
No full textLetter from Alexander Vogelsang to Homer P. Snyder regarding land allocation for the Havasupai Tribe
Als Der Hochwohlgebohrne Herr Herr Moritz Philip Carl von Vogelsang, Weyland Sr. Königl. Majestät in Preußen ... Geheimder Rath ... Am 11ten Dec. 1749. ... das Zeitliche gesegnet ... entwarf nachgesetzte Trauer-Zeilen ... Friedrich Seyffert. Canonicus B. M. V.
No full textGedächtnisgedicht auf Moritz Philipp Karl von Vogelsang, Regierungspräsident, +11. Dez. 1749Autopsie nach Ex. der ULB Sachsen-AnhaltVorlageform des Erscheinungsvermerks: Halberstadt, Gedruckt bey dem Königl. Preußl. Regierungs Buchdrucker H. W. Friderich
Multivariate trend comparisons between autocorrelated climate series with general trend regressors
No full textInference regarding trends in climatic data series, including comparisons across different data sets as well as univariate trend significance tests, is complicated by the presence of serial correlation and step-changes in the mean. We review recent developments in the estimation of heteroskedasticity and autocorrelation robust (HAC) covariance estimators as they have been applied to linear trend inference, with focus on the Vogelsang-Franses (2005) nonparametric approach, which provides a unified framework for trend covariance estimation robust to unknown forms of autocorrelation up to but not including unit roots, making it especially useful for climatic data applications. We extend the Vogelsang-Franses approach to allow general deterministic regressors including the case where a step-change in the mean occurs at a known date. Additional regressors change the critical values of the Vogelsang-Franses statistic. We derive an asymptotic approximation that can be used to simulate critical values. We also outline a simple bootstrap procedure that generates valid critical values and p-values. The motivation for extending the Vogelsang-Franses approach is an application that compares climate model generated and observational global temperature data in the tropical lower- and mid-troposphere from 1958 to 2010. Inclusion of a mean shift regressor to capture the Pacific Climate Shift of 1977 causes apparently significant observed trends to become statistically insignificant, and rejection of the equivalence between model generated and observed data trends occurs for much smaller significance levels (i.e. is more strongly rejected).Autocorrelation; trend estimation; HAC variance matrix; global warming; model comparisons
Bey frühzeitigem Ableben Des weiland Hochwohlgebohrnen Herrn, Herrn Moritz Philip Carl von Vogelsang ... Geheimten Raths ... Welcher ... zu Halberstadt am 11ten Decembr. 1749 Sein theures Leben beschloß ... Klaget, und tröstet sich ein einziger noch lebender Bruder, Friederich Wilhelm von Vogelsang, Obrist-Lieutenant des vierten Bataillons ...
No full textAutopsie nach Ex. der ULB Sachsen-AnhaltVorlageform des Erscheinungsvermerks: Halberstadt, gedruckt bey dem Königl. Preuß. Regierungs-Buchdrucker H. W. Friderich
Hoch-verdiente Grabschrifft Welche Bey dem Sarge Des weyland Hochwohlgebohrnen Herrn Herrn Moritz Philip Carl von Vogelsang Sr. Königlichen Majestät in Preussen ... Geheimten Raths, ... Als Dessen Leichnam am 18. Dec. 1749. in das Erb-Begräbniß nacher Gröningen abgeführet wurde, ... gehorsamst niederlegte Der Policey Rath Luetkens zu Halberstadt ...
No full textTrauergedicht auf Moritz Philipp Karl von Vogelsang, Regierungspräsident, gest. am 11. Dez. 1749Autopsie nach Ex. der ULB Sachsen-AnhaltFormat: ca. 35 x 42,5 cm. - Satzspiegel: 31,4 x 35,2 cm.Vorlageform des Erscheinungsvermerks: Halberstadt, Gedruckt bey dem Königl. Preuß. Regierungs-Buchdrucker H. W. Friderich
Powerful Trend Function Tests That are Robust to Strong Serial Correlation with an Application to the Prebisch Singer Hypothesis
No full textIn this paper we propose tests for hypothesis regarding the parameters of a the deterministic trend function of a univariate time series. The tests do not require knowledge of the form of serial correlation in the data and they are robust to strong serial correlation. The data can contain a unit root and the tests still have the correct size asymptotically. The tests we analyze are standard heteroskedasticity autocorrelation (HAC) robust tests based on nonparametric kernel variance estimators. We analyze these tests using the small-b asymptotic framework recently proposed by Kiefer and Vogelsang (2002). This analysis allows us to analyze the power properties of the tests with regards to bandwidth and kernel choices. Our analysis shows that among popular kernels, there are specific kernel and bandwidth choices that deliver tests with maximal power within a specific class of tests. We apply the recommended tests to the logarithm of a net barter terms of trade series and we find that this series has a statistically significant negative slope. This finding is consistent with the well known Prebisch-Singer hypothesis. Because our tests are robust to strong serial correlation or a unit root in the data, our results in support of the Prebisch-Singer hypothesis are relatively strong.Estimator, Fixed-b Asymptotics, Power Envelope, Unit Root, Nearly Integrated, Partial Sum, Deterministic Trend, Linear Trend.
Toward a Combined Merchant-Regulatory Mechanism for Electricity Transmission Expansion
No full textElectricity transmission pricing and transmission grid expansion have received increasing regulatory and analytical attention in recent years. Since electricity transmission is a very special service with unusual characteristics, such as loop flows, the approaches have been largely tailor-made and not simply taken from the general economic literature or from the more specific but still general incentive regulation literature. An exception has been Vogelsang (2001), who postulated transmission cost and demand functions with fairly general properties and then adapted known regulatory adjustment processes to the electricity transmission problem. A concern with this approach has been that the properties of transmission cost and demand functions are little known but are suspected to differ from conventional functional forms. The assumed cost and demand properties in Vogelsang (2001) may actually not hold for transmission companies (Transcos). Loop-flows imply that certain investments in transmission upgrades cause negative network effects on other transmission links, so that capacity is multidimensional. Total network capacity might even decrease due to the addition of new capacity in certain transmission links. The transmission capacity cost function can be discontinuous. There are two disparate approaches to transmission investment: one employs the theory based on long-run financial rights (LTFTR) to transmission (merchant approach), while the other is based on the incentive-regulation hypothesis (regulatory approach). An independent system operator (ISO) could handle the actual dispatch and operational pricing. The transmission firm is regulated through benchmark or price regulation to provide long-term investment incentives while avoiding congestion. In this paper we consider the elements that could combine the merchant and regulatory approaches in a setting with price-taking electricity generators and loads.Electricity transmission, Incentive regulation, Financial transmission rights, Loop-flow problem
Removing Cross-Border Capacity Bottlenecks in the European Natural Gas Market: A Proposed Merchant-Regulatory Mechanism
No full textWe propose a merchant-regulatory framework to promote investment in the European natural gas network infrastructure based on a price cap over two-part tariffs. As suggested by Vogelsang (2001) and Hogan et al. (2010), a profit maximizing network operator facing this regulatory constraint will intertemporally rebalance the variable and fixed part of its two-part tariff so as to expand the congested pipelines, and converge to the Ramsey-Boiteaux equilibrium. We confirm this with actual data from the European natural gas market by comparing the bi-level price-cap model with a base case, a no-regulation case, and a welfare benchmark case, and by performing sensitivity analyses. In all cases, the incentive model is the best decentralized regulatory alternative that efficiently develops the European pipeline system.regulation, transportation network, investment
Higgs production at RHIC and the positivity of the gluon helicity distribution
No full textWe show that the negative polarized gluon distribution Δg found in a recent global next-to-leading-order QCD analysis of the nucleon helicity structure is incompatible with the fundamental requirement that physical cross sections must not be negative. Specifically, we show that the fact that this polarized gluon strongly violates the positivity condition |Δg|≤g in terms of the unpolarized gluon distribution g leads to negative cross sections for Higgs boson production at RHIC as a physical process, implying that this negative Δg is unphysical
Nonparametric Rank Tests for Non-stationary Panels
No full textThis study develops new rank tests for panels that include panel unit root tests as a special case. The tests are unusual in that they can accommodate very general forms of both serial and cross-sectional dependence, including cross-unit cointegration, without the need to specify the form of dependence or estimate nuisance parameters associated with the dependence. The tests retain high power in small samples, and in contrast to other tests that accommodate cross-sectional dependence, the limiting distributions are valid for panels with finite cross-sectional dimensions.Nonparametric rank tests, unit roots, cointegration, cross-sectional dependence
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