Classification of General Sequences by Frame-Related Operators

This note is a survey and collection of results, as well as presenting some original research. For Bessel sequences and frames, the analysis, synthesis and frame operators as well as the Gram matrix are well-known, bounded operators. We investigate these operators for arbitrary sequences, which in general lead to possibly unbounded operators. We characterize various classes of sequences in terms of these operators and vice-versa. Finally, we classify these sequences by operators applied on orthonormal bases

Quality assurance for the ALICE Monte Carlo procedure

We implement the already existing macro,$ALICE_ROOT/STEER /CheckESD.C that is ran after reconstruction to compute the physics efficiency, as a task that will run on proof framework like CAF. The task was implemented in a C++ class called AliAnalysisTaskCheckESD and it inherits from AliAnalysisTaskSE base class. The function of AliAnalysisTaskCheckESD is to compute the ratio of the number of reconstructed particles to the number of particle generated by the Monte Carlo generator.The class AliAnalysisTaskCheckESD was successfully implemented. It was used during the production for first physics and permitted to discover several problems (missing track in the MUON arm reconstruction, low efficiency in the PHOS detector etc.). The code is committed to the SVN repository and will become standard tool for quality assurance.Comment: 7 pages, 7 figure

State Dependence and Alternative Explanations for Consumer Inertia

For many consumer packaged goods products, researchers have documented a form of state dependence whereby consumers become "loyal" to products they have consumed in the past. That is, consumers behave as though there is a utility premium from continuing to purchase the same product as they have purchased in the past or, equivalently, there is a psychological cost to switching products. However, it has not been established that this form of state dependence can be identified in the presence of consumer heterogeneity of an unknown form. Most importantly, before this inertia can be given a structural interpretation and used in policy experiments such as counterfactual pricing exercises,alternative explanations which might give rise to similar consumer behavior must be ruled out. We develop a flexible model of heterogeneity which can be given a semi-parametric interpretation and rule out alternative explanations for positive state dependence such as autocorrelated choice errors, consumer search, or consumer learning.

Winning the Marathon: A Reconsideration of the Development Effects of Neo-Classical Trade Practices

This paper focuses on the trading policies of developed nations, specifically import quotas, and their positive and negative effects on developing countries. We hope to show that the case is not as polar as was once believed and instead focus on how the current literature suggests that the real effects of free-trade are shrouded in nuance and circumstance. Our starting point will be an analysis of the fashionable neo-liberal trade theory and its impact on development, making special reference to the Multi-Fibre Agreement (MFA). We will then turn our attention to the shortcomings of the neo-liberal approach, and provide a critique of it with the aim of shedding some light on the true nature of quotas and their contemporary cousins: Voluntary Export Restraints (VERs). Finally, we will examine whether or not developing nations are merely predetermined pawns in the game of globalized trade or if they can take an active role in increasing and maximizing their trade position. Editor\u27s Note: Figures are missing from this article. We apologize for the inconvenience

On the regularity of the inverse jacobian of parallel robots

Checking the regularity of the inverse jacobian matrix of a parallel robot is an essential element for the safe use of this type of mechanism. Ideally such check should be made for all poses of the useful workspace of the robot or for any pose along a given trajectory and should take into account the uncertainties in the robot modeling and control. We propose various methods that facilitate this check. We exhibit especially a sufficient condition for the regularity that is directly related to the extreme poses that can be reached by the robot

Monetary policy transmission in the euro area: what do aggregate and national structural models tell us?

This paper analyses the monetary transmission mechanism in the euro area through the use of large scale macroeconomic models at the disposal of the European Central Bank and the National Central Banks of the Eurosystem. The results reported are based on a carefully designed common simulation experiment involving a 100 basis point rise in the policy interest rate for two years accompanied by common assumptions regarding the path of longterm interest rates and the exchange rate. Aggregating the country level results, the fall in output is found to reach a maximum of 0.4 per cent after 2 years. The maximum aggregate fall in prices is also 0.4 per cent, but it occurs 2 years later. The dominant channel of transmission in the first two years is the exchange rate channel, but in terms of the impact on output, the user cost of capital channel becomes dominant from the third year of the simulation onwards.monetary policy transmission mechanism, macroeconomic models