Search Results - "Sperlich, Stefan"

A behavioural model of minority language shift: Theory and empirical evidence by Uriarte, José Ramón, Sperlich, Stefan

“…Natural languages with their speech communities tend to compete for speakers, very much like firms compete for market shares. As a result, some languages…”
Get full text

Bandwidth selection for kernel density estimation: a review of fully automatic selectors by Heidenreich, Nils-Bastian, Schindler, Anja, Sperlich, Stefan

“…On the one hand, kernel density estimation has become a common tool for empirical studies in any research area. This goes hand in hand with the fact that this…”
Get full text

A Note on Simultaneous Confidence Intervals for Direct, Indirect and Synthetic Estimators by Valvason, Christophe Quentin, Sperlich, Stefan

“…Direct, indirect and synthetic estimators have a long history in official statistics. While model-based or model-assisted approaches have become very popular,…”
Get full text

A Review and Comparison of Bandwidth Selection Methods for Kernel Regression by Köhler, Max, Schindler, Anja, Sperlich, Stefan

“…Over the last decades, several methods for selecting the bandwidth have been introduced in kernel regression. They differ quite a bit, and although there…”
Get full text

Explaining grassland biomass – the contribution of climate, species and functional diversity depends on fertilization and mowing frequency by Bernhardt-Römermann, Markus, Römermann, Christine, Sperlich, Stefan, Schmidt, Wolfgang

“…1. Grassland ecosystems are often used to generate biomass in temperate regions of the world. It is well known that biomass is influenced by climate and…”
Get full text

Conditional variance forecasts for long-term stock returns by Mammen, Enno, Nielsen, Jens Perch, Scholz, Michael, Sperlich, Stefan

“…In this paper, we apply machine learning to forecast the conditional variance of long-term stock returns measured in excess of different benchmarks,…”
Get full text

A note on combining machine learning with statistical modeling for financial data analysis by Sarabia, José María, Prieto, Faustino, Jordá, Vanesa, Sperlich, Stefan

“…This note revisits the ideas of the so-called semiparametric methods that we consider to be very useful when applying machine learning in insurance. To this…”
Get full text

Income Inequality in the South-South Integration by Sperlich, Yvonne, Sperlich, Stefan

“…Some of the findings from new trade and economic geography theory are quite critical concerning the South-South agreements. This study contributes to the…”
Get full text

A Simple Method for Predicting Distributions by Means of Covariates with Examples from Poverty and Health Economics by Dai, Jing, Sperlich, Stefan, Zucchini, Walter

“…We present an integration based procedure for predicting the distribution f of an indicator of interest in situations where, in addition to the sample data,…”
Get full text

Comments on: hybrid semiparametric Bayesian networks by Sperlich, Stefan

“…This note comments on the article of David Atienza, Pedro Larrañaga and Concha Bielza in which they first review recent contributions to Bayesian networks and…”
Get full text

Direct foreign investment and intellectual property reform in the South by Kanwar, Sunil, Sperlich, Stefan

“…We study the association between intellectual property (IP) reform in developing countries and their foreign direct investment (FDI) inflows over 2004–2015,…”
Get full text

Marginal and Conditional Multiple Inference for Linear Mixed Model Predictors by Kramlinger, Peter, Krivobokova, Tatyana, Sperlich, Stefan

“…In spite of its high practical relevance, cluster specific multiple inference for linear mixed model predictors has hardly been addressed so far. While…”
Get full text

Modeling heterogeneous treatment effects in the presence of endogeneity by Benini, Giacomo, Sperlich, Stefan

“…An inappropriate handling of cross-sectional heterogeneity renders estimates of causal effects inaccurate and uninformative. The present paper discusses how…”
Get full text

On the choice of regularization parameters in specification testing: a critical discussion by Sperlich, Stefan

“…This article reviews and discusses the problem of choosing smoothing parameters and resampling schemes for specification tests in econometrics. While smoothing…”
Get full text

Bootstrap-based statistical inference for linear mixed effects under misspecifications by Reluga, Katarzyna, Lombardía, María-José, Sperlich, Stefan

“…Linear mixed effects are considered excellent predictors of cluster-level parameters in various domains. However, previous research has demonstrated that their…”
Get full text

Exploring the Heterogeneous Effects of Export Promotion by Olarreaga, Marcelo, Sperlich, Stefan, Trachsel, Virginie

“…Abstract A semiparametric varying coefficient model is used to explore the heterogeneity in returns to export promotion across countries. Differences in…”
Get full text

Simultaneous Inference for Empirical Best Predictors With a Poverty Study in Small Areas by Reluga, Katarzyna, Lombardía, María-José, Sperlich, Stefan

“…Today, generalized linear mixed models (GLMM) are broadly used in many fields. However, the development of tools for performing simultaneous inference has been…”
Get full text

A Note on Empirical Studies of Life-Satisfaction: Unhappy with Semiparametrics? by Ranjbar, Setareh, Sperlich, Stefan

“…This article deals with the modeling of life-satisfaction, and estimating the impact of age on it. We investigate how findings and the interpretation of…”
Get full text

Growth and convergence in South–South integration areas: An empirical analysis by Sperlich, Stefan, Sperlich, Yvonne

“…Until recently, it has been argued in economic theory that regional integration and trade agreements among developing countries may achieve negative growth…”
Get full text

Comments on: An updated review of Goodness-of-Fit tests for regression models by Sperlich, Stefan

“…We discuss the following two particular aspects of the paper of González-Manteiga and Crujeiras ( 10.1007/s11749-013-0327-5 ): First, what changes if the null…”
Get full text