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- Managing Customer Services : Human Resource Practices, Turnover, And Sales Growth
- This study examines the relationship between human resource practices, employee quit rates, and organizational performance by drawing on a unique nationally representative sample of 354 customer service and sales establishments in the telecommunications industry. Multivariate analyses show that quit rates are lower and sales growth is higher in establishments that...
- White papers 2000-06-29
- The Imprinting Effect of Initial Resources and Market Strategy on the Early Growth Path of Start-Ups
- Research-based start-ups RBSUs differ in their early growth. Some firms grow very rapidly, while others grow slowly or do not grow at all. In this paper one bring insights in the causes of the diversity in the early growth of RBSUs. Growth is a complex, multidimensional phenomenon. Therefore, one studies...
- White papers 2005-06-01
Additional Resources
- Theoretical and Empirical Properties of Dynamic Conditional Correlation Multivariate GARCH
- This paper develops the theoretical and empirical properties of a new class of multivariate GARCH models capable of estimating large time-varying covariance matrices, Dynamic Conditional Correlation Multivariate GARCH. The paper shows that the problem of multivariate conditional variance estimation can be simplified by estimating univariate GARCH models for each asset,...
- White papers 2001-11-09
- JupiterResearch Finds Compelling Benefits of Multivariate Web Site Testing But Adoption Remains Low
- NEW YORK -- JupiterResearch, a leading authority on the impact of the Internet and emerging consumer technologies on business, has found that despite compelling benefits resulting from multivariate testing, implementation remains low. Outlined in a new report published by JupiterResearch "Multivariate Testing Agenda: Overcoming Challenges and Building Strategies for Success,"...
- Research articles 2007-11-26
- Two projection methods for use in the analysis of multivariate process data with an illustration in petrochemical production.
- Principal components analysis PCA is often used in the analysis of multivariate process data to identify important combinations of the original variables on which to focus for more detailed study. However, PCA and other related projection techniques from the standard multivariate repertoire are not explicitly designed...
- Research articles 2004-11-01
- Multivariate Modeling of Daily REIT Volatility
- This paper examines volatility in Equity REITs using a multivariate GARCH based model. The Multivariate VAR-GARCH technique documents the return and volatility linkages between REIT sub-sectors and it examines the influence of other US equity series. The motivation is for investors to incorporate time-varying volatility and correlations in their portfolio...
- White papers 2004-10-18
- Estimating genotypic correlations and their standard errors using multivariate restricted maximum likelihood estimation with SAS Proc MIXED.
- Plant breeders traditionally have estimated genotypic and phenotypic correlations between traits using the method of moments on the basis of a multivariate analysis of variance MANOVA. Drawbacks of using the method of moments to estimate variance and Plant breeders traditionally have estimated genotypic and phenotypic correlations between traits...
- Research articles 2006-03-01
- Multivariate Testing Pioneer, Optimost, Contracts WebAdvantage.net for Search Engine Optimization
- HAVRE DE GRACE, Md. -- WebAdvantage.net, (http://www.webadvantage.net), a full-service search marketing and online advertising agency, today disclosed a year-long, search engine optimization SEO contract with Optimost (http://www.optimost.com), the pioneer in comprehensive, real-time multivariate testing solutions. Multivariate testing simultaneously tests various combinations of web page elements, i.e. headlines, product images and...
- Research articles 2007-05-23
- A Rank-Based Multivariate CUSUM Procedure.
- We consider statistical process control when measurements are multivariate. A cumulative sum CUSUM procedure is suggested in detecting a shift in the mean vector of the measurements, which is based on the cross-sectional antiranks of the measurements. At each time point, the measurements are ordered and...
- Research articles 2001-05-01
- Estimating multivariate selection gradients in the fossil record: a naticid gastropod case study
- Abstract.-The purpose of this paper is to explore the possibility and utility of estimating multivariate selection in fossil assemblages, using naticid gastropods as a case study. We used the presence or the absence of a naticid borehole as an index of survival with respect to drilling attacks, enabling us to...
- Research articles 2006-01-01
- Applied Multivariate Statistical Analysis.(Review)
- Applied Multivariate Statistical Analysis (4th ed.), by Richard A. JOHNSON and Dean W. WICHERN, Upper Saddle River, NJ: Prentice-Hall, 1998, ISBN 0-13-834194-X, xvi + 816 pp., $89. This is a very classical book in multivariate analysis MVA. Its first edition was published in 1982....
- Research articles 1999-02-01
- Monitoring Banking Sector Fragility: A Multivariate Logit Approach with an Application to the 1996–97 Banking Crises
- A multivariate empirical model of banking crisis probabilities can be useful for monitoring fragility in the banking sector. The paper agrees over the monitoring system which must be designed to fit the needs of policymakers, so systems must be developed as part of an interactive process involving both econometricians and...
- White papers 2003-01-01
- Multivariate Methods for Process Knowledge Discovery: The Power to Know Your Process
- Knowing the relationship between the input and output variables of a process is critical to process monitoring, prediction, and optimization. Powerful methods for multivariate process modeling, which address the large volumes of data available in modern manufacturing environments, have been developed by chemometricians and are being applied within the chemical...
- White papers 2001-03-28
- A Multivariate Empirical Bayes Statistic for Replicated Microarray Time Course Data
- In this paper they derive a one-sample multivariate empirical Bayes statistic to rank genes in the order of differential expression from replicated microarray time course experiments. They do this by testing the null hypothesis that the expectation of a k-vector of a gene's expression levels is a multiple of 1k,...
- White papers 2004-08-04
- Applications of Multivariate Analysis in International Tourism Research: The Marketing Strategy Perspective of NTOs
- International tourism has increased exponentially since 1950. With this growth the industry has become significantly more competitive, and the marketing role of National Tourism Organizations NTOs has taken on added significance. Correspondingly, research related to the marketing aspects of international tourism has increased. With this in mind, this paper provides...
- White papers 2002-09-11
- Static Hedging of Multivariate Derivatives by Simulation
- The paper proposes an approximate static hedging procedure for multivariate derivatives. The hedging portfolio is composed of statically held simple univariate options, optimally weighted minimizing the variance of the difference between the target claim and the approximate replicating portfolio. The method uses simulated paths to estimate the weights of the...
- White papers 2003-09-02
- Multivariate Extremes at Work for Portfolio Risk Measurement
- This paper proposes a methodology to provide risk measures for portfolios during extreme events. The approach is based on splitting the multivariate extreme value distribution of the assets of the portfolio into two parts: the distributions of each asset and their dependence function. The estimation problem is also investigated. Then,...
- White papers 2002-01-15
- Evaluating Wall Street Journal survey forecasters: a multivariate approach
- This paper proposes a methodology for assessing the joint performance of multivariate forecasts of economic variables. The methodology is illustrated by comparing the rankings of forecasters by the Wall Street Journal with our alternative rankings. The results show that the methodology can provide useful insights as to the certainty of...
- Research articles 2002-07-01
- Memetrics Ranked #1 Multivariate Testing and Site Optimization Vendor by JupiterResearch Across Service Offering, Methodology and Partner Integration
- Multivariate Testing Company Memetrics Cites Robust Delivery Model & Nobel-Prize Winning Choice Modeling as Bases for High JupiterResearch Scores
- Research articles 2006-11-02
- Monitoring multivariate aviation safety data by data depth: control charts and threshold systems
- ANDREW Y. CHENG [1] REGINA Y. LIU [2] JAMES T. LUXHOJ [3] Aviation safety analysis is increasingly needed in regulating air traffic and safety, in light of the rapid growth in air traffic density. With the recent advances in computer technology, large amounts of multivariate aviation safety...
- Research articles 2000-09-01
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