Jesper Wulff
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View article: Blaming the Thermometer for the Fever: Separating Misapplication from Method in Null Hypothesis Significance Testing
Blaming the Thermometer for the Fever: Separating Misapplication from Method in Null Hypothesis Significance Testing Open
View article: EXPLORING THE RELEVANCE OF TWO-PART MODELS IN INNOVATION RESEARCH: TOWARDS A BETTER UNDERSTANDING OF INNOVATION SALES
EXPLORING THE RELEVANCE OF TWO-PART MODELS IN INNOVATION RESEARCH: TOWARDS A BETTER UNDERSTANDING OF INNOVATION SALES Open
In empirical studies, firms’ innovation is often measured as the proportion of sales that can be attributed to new products or services. In a review of 20 years of research on innovation, we find this variable to be used in 141 studies pro…
View article: Hic Sunt Dracones: On the Risks of Comparing the ITCV With Control Variable Correlations
Hic Sunt Dracones: On the Risks of Comparing the ITCV With Control Variable Correlations Open
To examine the robustness of their results against omitted variable bias, management researchers often compare the Impact Threshold of a Confounding Variable (ITCV) with control variable correlations. This paper describes three issues with…
View article: CEO personality traits, strategic flexibility, and firm dynamics
CEO personality traits, strategic flexibility, and firm dynamics Open
Reexamining CEO personality traits from a real options theory perspective, we suggest that the firm's strategic flexibility can be worsened by CEO conscientiousness and neuroticism. We use a measure of strategic flexibility as the firm's a…
View article: Multilevel interactions between family and neighbourhood socioeconomic indices in childhood and later risks of self-harm and violent criminality in Denmark: a national cohort study
Multilevel interactions between family and neighbourhood socioeconomic indices in childhood and later risks of self-harm and violent criminality in Denmark: a national cohort study Open
European Research Council, Lundbeck Foundation Initiative for Integrative Psychiatric Research, and BERTHA, the Danish Big Data Centre for Environment and Health funded by the Novo Nordisk Foundation Challenge Programme.
View article: How and why alpha should depend on sample size: A Bayesian-frequentist compromise for significance testing
How and why alpha should depend on sample size: A Bayesian-frequentist compromise for significance testing Open
The use of fixed alpha levels in statistical testing is prevalent in management research, but can lead to Lindley's paradox in highly powered studies. In this article, we propose a sample size-adjusted alpha level approach that combines th…
View article: A bi-objective <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="d1e1786" altimg="si113.svg"><mml:mi>k</mml:mi></mml:math>-nearest-neighbors-based imputation method for multilevel data
A bi-objective -nearest-neighbors-based imputation method for multilevel data Open
View article: CEO Personality Traits and Firm Dynamics
CEO Personality Traits and Firm Dynamics Open
View article: Prediction of Autism Risk From Family Medical History Data Using Machine Learning: A National Cohort Study From Denmark
Prediction of Autism Risk From Family Medical History Data Using Machine Learning: A National Cohort Study From Denmark Open
Family history of multiple mental and nonmental conditions can identify more individuals at highest risk for ASD than only considering the immediate family history of ASD. A comprehensive family history may be critical for a clinically rel…
View article: A multilevel Bayesian framework for predicting municipal waste generation rates
A multilevel Bayesian framework for predicting municipal waste generation rates Open
View article: Statistical Myths About Log‐Transformed Dependent Variables and How to Better Estimate Exponential Models
Statistical Myths About Log‐Transformed Dependent Variables and How to Better Estimate Exponential Models Open
We review 10 years of research published in the Strategic Management Journal ( SMJ ) and find the wide use of log‐transformed dependent variables (LTDVs) to be based on statistical myths, with possible detrimental effects for the validity …
View article: Watch me go big: CEO narcissism and corporate acquisitions
Watch me go big: CEO narcissism and corporate acquisitions Open
Purpose The purpose of this paper is to investigate the role of CEO narcissism in corporate acquisitions with a focus on frequency and size and furthermore to examine the subsequent stock market reaction. Design/methodology/approach The au…
View article: Statistical Myths about Log-Transformed Dependent Variables: When, Why, and How
Statistical Myths about Log-Transformed Dependent Variables: When, Why, and How Open
Strategy and management researchers often employ log-transformed dependent variables (LTDVs). Such a transformation means that researchers estimate an exponential model, which implies estimating a non-linear relationship. We review 10 year…
View article: Watch Me Go Big: CEO Narcissism and Corporate Acquisitions
Watch Me Go Big: CEO Narcissism and Corporate Acquisitions Open
Purpose – The purpose of this paper is to investigate the role of CEO narcissism in corporate acquisitions with a focus on frequency and size and furthermore to examine the subsequent stock market reaction.
Design/methodology/design – T…
View article: Keeping it within bounds: Regression analysis of proportions in international business
Keeping it within bounds: Regression analysis of proportions in international business Open
View article: Are you 110% sure? Modeling of fractions and proportions in strategy and management research
Are you 110% sure? Modeling of fractions and proportions in strategy and management research Open
Many outcomes of interest to management and strategy researchers are in the form of fractions, proportions, or percentages. We review 10 years of research in seven leading strategy and management journals. Instead of implementing best-prac…
View article: Generalized two-part fractional regression with cmp
Generalized two-part fractional regression with cmp Open
Researchers who model fractional dependent variables often need to consider whether their data were generated by a two-part process. Two-part models are ideal for modeling two-part processes because they allow us to model the participation…
View article: Are Survey Experiments as Valid as Field Experiments in Management Research? An Empirical Comparison Using the Case of Ethnic Employment Discrimination
Are Survey Experiments as Valid as Field Experiments in Management Research? An Empirical Comparison Using the Case of Ethnic Employment Discrimination Open
Field experiments have long been the gold standard in studies of organizational topics such as ethnic discrimination in recruitment. The recent use of survey experiments, also known as experimental vignettes, suggests that some researchers…
View article: The effect of acquisitions on exploration and exploitation in China
The effect of acquisitions on exploration and exploitation in China Open
Purpose The mechanisms of knowledge acquisition and their impact on innovation are particularly relevant in the context of rapidly growing emerging markets. The purpose of this paper is to investigate the relationship between firm acquisit…
View article: Are you 110% sure? Modeling of fractions and proportions in strategy and management research
Are you 110% sure? Modeling of fractions and proportions in strategy and management research Open
Many outcomes of interest to management and strategy researchers are in the form of fractions, proportions, or percentages. We review 10 years of research in seven leading strategy and management journals. Instead of implementing best-prac…
View article: The effect of early-life and adult socioeconomic position on development of lifestyle-related diseases
The effect of early-life and adult socioeconomic position on development of lifestyle-related diseases Open
About one-tenth to two-thirds of the effect of early-life position is mediated by the position attained in adulthood. The degree mediated depend on the outcome investigated, gender and the social position marker used indicating that altern…
View article: Assessing the relative importance of correlates of loneliness in later life. Gaining insight using recursive partitioning
Assessing the relative importance of correlates of loneliness in later life. Gaining insight using recursive partitioning Open
Recursive partitioning can identify which combinations of experiences and circumstances characterise high-risk groups. Poor mental wellbeing and sparse social contact emerged as especially important and classical demographic factors as ins…
View article: Multiple imputation by chained equations in praxis: Guidelines and review
Multiple imputation by chained equations in praxis: Guidelines and review Open
Multiple imputation by chained equations (MICE) is an effective tool to handle missing data - an almost unavoidable problem in quantitative data analysis. However, despite the empirical and theoretical evidence supporting the use of MICE, …
View article: A Two-Pronged Approach? Combined Leadership Styles and Innovative Behavior
A Two-Pronged Approach? Combined Leadership Styles and Innovative Behavior Open
This article examines the relationship between transformational, transactional, and empowering leadership and the innovative behavior of public sector employees. Instead of investigating their association individually, this article focuses…
View article: Et billede siger mere end 1000 ord
Et billede siger mere end 1000 ord Open
Denne artikel demonstrerer, hvordan en analyse og formidling af resultater fra en multilevelanalyse med fordel kan suppleres med grafiske illustrationer.Ved brug af data fra European Social Survey demonstreres det, hvordan man grafisk kan …
View article: Danish Manufacturing:Winning in the Next Decade
Danish Manufacturing:Winning in the Next Decade Open
View article: Field Experimental Evidence on Sector Differences in Ethnic Discrimination: A Bayesian Approach
Field Experimental Evidence on Sector Differences in Ethnic Discrimination: A Bayesian Approach Open
Research has found considerable ethnic discrimination in employment decisions of private firms. Yet, little is known about sector differences in employment discrimination and whether public organizations are more or less likely to discrimi…
View article: Et billede siger mere end 1000 ord: et eksempel på grafisk formidling og fortolkning af et multilevelstudie
Et billede siger mere end 1000 ord: et eksempel på grafisk formidling og fortolkning af et multilevelstudie Open
View article: Empirical Research in Foreign Market Entry Mode
Empirical Research in Foreign Market Entry Mode Open
This review on the empirical literature on foreign market entry mode provides a systematic assessment of empirical research through a simple quantitative procedure using transparent criteria for article selection. In total, 1134 statistica…