Ingrid Verheul

Rotterdam School of Management · Department of Strategic Management and Entrepreneurship

Widespread attention is being paid to the alleged rise of narcissism in people in general and business leaders in particular. Surprisingly, hardly any studies have focused on the link between narcissism and entrepreneurship. Using self-reported data from 4798 respondents from three countries, we explore the associations between trait narcissism and...

The article presents a response to the commentary “Entrepreneurship and Contextual Definitions of Mental Disorders: Why Psychiatry Abandoned the Latter and Entrepreneurship Scholars May Want to Follow Suit” on the AMP symposium “Entrepreneurship and Mental Health.” We discuss and largely challenge the commentary’s criticism against the emerging res...

There is a small body of literature linking attention‐deficit hyperactivity disorder (ADHD) and its symptoms to entrepreneurial manifestations. Some studies take a subclinical perspective by studying the presence of symptoms, while other studies take a clinical perspective by studying the formal diagnosis of ADHD. The entrepreneurial manifestations...

Recent studies have shown that individuals with attention deficit hyperactivity disorder (ADHD) are relatively often engaged in self-employment. We analyze whether self-employment mediates the relationship between ADHD and earnings. To overcome endogeneity concerns in the estimation of this relationship, we use the polygenic risk score (PRS) for AD...

A growing conversation has emerged linking ostensibly dark or pathological individual-level characteristics to entrepreneurship. Attention deficit/hyperactivity disorder (ADHD) is among the most central and emblematic. Recent studies have made great strides—articulating the theoretical relevance of ADHD-type behavior in entrepreneurship and suggest...

Entrepreneurs rely on different decision–making logics when starting new ventures, including causal and effectual reasoning. Extant research suggests that venture performance is positively associated with both causal business planning and effectual action–orientation, but studies have not yet tested the synergistic potential of these two logics. We...

Develops integrated perspective on the dualism of ADHD in entreprenurship, both across the extended entrepreneurial process and within particular stages/activites.

Kiss, A. N., Fernhaber, S., & McDougall–Covin, P. P. (2018). Slack, Innovation, and Export Intensity: Implications for Small– and Medium–Sized Enterprises. Entrepreneurship Theory and Practice. Jiang, H., Cannella, A. A., & Jiao, J. (2018). Does Desperation Breed Deceiver? A Behavioral Model of New Venture Opportunism. Entrepreneurship Theory and P...

Attention-deficit/hyperactivity (ADHD) symptoms have been associated with the decision to become self-employed. Although these symptoms are generally regarded as disadvantageous, there may also be a bright side. To our knowledge, however, there has been no systematic, epidemiological evidence to support this claim. This paper examines the associati...

This study investigates the link between attention deficit hyperactivity disorder (ADHD) symptoms and entrepreneurial orientation (EO). EO is known to be a crucial factor for small firm survival and growth, conceptualised as a business characteristic but influenced by the personality of the small business owner and measured at her individual level....

Little is known about the relation between entrepreneurship and the extent of psychiatric symptoms. Validated psychiatric symptom scores are seldom used for non-clinical reasons. One prevalent symptom that deserves our interest is Attention Deficit and Hyperactivity Disorder (ADHD). ADHD is a developmental disorder characterized by inattentiveness...

During the venturing process, entrepreneurs can rely on the logic of effectuation as a decision-making framework to guide their subsequent actions. The effectual approach consists of control strategies that help to deal with upcoming contingencies arising during new venture creation process. In this study, we distinguish between the entrepreneurial...

Research on organizational ambidexterity has introduced various approaches for organizations to combine exploratory and exploitative activities. Yet, these approaches are often not feasible for small and medium-sized enterprises (SMEs). This study attempts to develop our understanding of how SMEs can achieve ambidexterity by advancing a resource ma...

This paper investigates factors associated to a higher likelihood of engaging in Intellectual Property Right (IPR) activities in the 103 Italian provinces for the period 1998–2007. We distinguish between patent and trademark activity and find that their determinants are to some extent different. Both patent and trademark activity are influenced by...

The growing interest of the business world in the virtues of individ- uals with specific cognitive behavioral characteristics, such as lack of attention and hyperactivity, is not matched by scholarly work. Indi- viduals who experience the challenges associated with such character- istics are thought to thrive in work environments that embrace their...

Gender differences at five levels of entrepreneurial engagement are explained using country effects while controlling for individual-level variables. We distinguish between individuals who have never considered starting up a business, those who are thinking about it, and nascent, young, and established entrepreneurs. We use a large international da...

a b s t r a c t This paper investigates an essential aspect of the entrepreneurial personality: why women's self-employment rates are consistently lower than those of men. It has three focal points. It discriminates between the preference for self-employment and actual involve-ment in self-employment using a two (probit) equation model. It makes a...

This study examines the relationship between AD/HD symptoms and entrepreneurship intentions in a sample of 13,121 students in higher education. We show that the degree to which students experience AD/HD symptoms increases the likelihood of intending to start up a business directly after completion of their studies. We also find evidence of partial...

There is considerable variation in the firm exit rate across the 103 provinces in Italy. This paper investigates a range of determinants of the exit rate for twelve different sectors in the Italian provinces for a period of eleven years. The analysis shows that the exit rate is positively affected by entry in the previous year (displacement) in the...

This study empirically investigates factors influencing satisfaction levels of founders of new ventures, using a representative sample of 1,107 Dutch founders. We relate entrepreneurial satisfaction (with income, psychological burden and leisure time) to firm performance, motivation and human capital. Founders with high levels of specific human cap...

In the media role models are increasingly being acknowledged as an influential factor in explaining the reasons for the choice of occupation and career. Various conceptual studies have proposed links between role models and entrepreneurial intentions. However, empirical research aimed at establishing the importance of role models for (nascent) entr...

This paper compares (former) transition and non-transition economies in Europe and Asia with respect to the opportunities available to achieve entrepreneurial progress. In addition, the differential impacts of three perceived environmental barriers to new venture creation are investigated. Entrepreneurial progress is measured using five levels of i...

In the media role models are increasingly being acknowledged as an influential factor in explaining the reasons for the choice of occupation and career. Various conceptual studies have proposed links between role models and entrepreneurial intentions. However, empirical research aimed at establishing the importance of role models for (nascent) entr...

The decision to become an entrepreneur is in essence an individual decision. But even when the endowments of inhabitants are taken into account, some regions have persistently higher entrepreneurship rates than others. Proposed explanations for this regional variation are numerous: market potential, unemployment rates, knowledge spillovers and aggl...

This paper investigates determinants of engagement in various stages of the entrepreneurial process while considering an individual's start-up motivation using 2007 survey data for 27 European countries and the US. Next to opportunity and necessity start-up motivations, we take into account individuals driven by a combination of both motivations. W...

The ageing population increasingly becomes a challenge for policy makers. Given the expected changes in the age decomposition of the workforce, it becomes more pressing to understand the nature of the relationship between age and entrepreneurship. More specifically: what are the consequences of an ageing (entrepreneurial) population on entrepreneur...

This article examines determinants of working hours by self-employed, explicitly discriminating between preference and productivity effects. A simple model of working hours is derived, not requiring expected profit data. The model is estimated using data from a Dutch survey of 1350 start-ups. Outsourcing and number of employees appear related to bo...

This paper investigates time allocation decisions in new ventures of female and male entrepreneurs using a new model that distinguishes between effects of preferences (what they like) and productivity (what they are good at) on the number of working hours. Using data of 1203 entrepreneurs we find that the preference for work time in new ventures is...

Santarelli E., Carree M. and Verheul I. Unemployment and firm entry and exit: an update on a controversial relationship, Regional Studies. The present study explores the relationship between unemployment and subsequent firm entry and exit for 103 Italian provinces for the period 1997–2003. Two models are estimated. The first model concentrates on u...

In this study, we test for the effect of public policies supporting entry in Italian regions on actual rates of new firm formation. To assess the effectiveness of entrepreneurship policy, we investigate the dynamics in six different sectors at the local level: Manufacturing, Construction, Commerce, Hotels and Restaurants, Transportation, and Financ...

Drawing upon institutional theory we develop a conceptual model and investigate the determinants of market entry for worker cooperatives, publicly traded and limited-liability companies. Our results show that formal institutional conditions (i.e., mercantile legislation) influence the start-up choice of entrepreneurs regarding the legal form of the...

This paper explores the role of social interactions at the work floor for understanding gender pay differences in the EU. Using data from the Fourth European Working Conditions Survey, we find that sex similarity of subordinate and supervisor decreases the pay disadvantage for women in non-managerial occupations, though working for a female boss is...

We investigate which countries have the highest potential to achieve entrepreneurial progress. This progress is defined using an entrepreneurial ladder with five successive steps: “never thought about starting a business”, “thinking about starting a business”, “taking steps to start a business”, “running a business for less than three years”, and “...

This paper investigates the determinants of the ambition to grow among Dutch early-stage entrepreneurs (nascents and young business owners). We use Adult Population Survey data of the Global Entrepreneurship Monitor (GEM) for the Netherlands. Merging cross-sectional data of the years 2002 to 2007, we arrive at a sample of 409 nascents and 336 young...

This study empirically investigates factors that influence overoptimism across nascent entrepreneurs. We distinguish between two main groups of determinants (information, motivation) and three types of overoptimism (income, psychological burden, leisure time). Findings indicate that entrepreneurs who have relevant business information are more real...

This paper investigates why self-employment rates of women are consistently lower than those of men. It has three focal points: it discriminates between the preference for self-employment and actual involvement in self-employment for women and men. It uses a huge data set from about 8,000 individuals across 26 countries while probit equations are e...

This study investigates the influence of the unemployment rate on firm entry, exit and net entry in Italian provinces. We attempt to explain these market dynamics in six different sectors, including manufacturing, construction, commerce, hotels and restaurants, transport and financial services. We control for other regional factors, such as patenti...

We investigate whether women and men differ with respect to the steps they take in the entrepreneurial process, distinguishing between five successive steps described by the following positions: (1) "never thought about it"; (2) "thinking about starting up a business"; (3) "taking steps to start a business"; (4) "running a business for less than th...

Evidence relating unemployment to health is found at every level of social science analysis from national population rates to individual psychophysiological stress response. At the population level of analysis, increase in the unemployment rate indicates recession and/or structural economic decline. At the individual level, unemployment is interpre...

Most studies investigating the relationship between entrepreneurship and economic growth treat entrepreneurs as a homogeneous group. This study investigates the impact of entrepreneurial diversity on national economic growth. Using data for 36 countries participating in the Global Entrepreneurship Monitor we investigate whether the impact on growth...

This paper examines the relationship between entrepreneurship (as measured by fluctuations in the business ownership rate) and unemployment in Japan for the period between 1972 and 2002. We find that, although Japan’s unemployment rate has been influenced by specific exogenous shocks, the effects of entrepreneurship on unemployment are not differen...

This paper investigates the commitment-orientation of HRM practices in female- and male-led firms. A distinction is made between emphasizing commitment or control in the design of HRM practices. To test for gender differences use is made of a sample of 555 Dutch firms. Contrary to what is generally believed it is found that – when controlled for...

We investigate the impact of entrepreneurial diversity on national economic growth. More specifically, using data for 36 countries participating in the Global Entrepreneurship Monitor, we investigate whether the impact of entrepreneurial activity is different for different sociodemographic groups. Diversity is measured in terms of age, education an...

Female self-employment rates are consistently lower than those of men. This untapped female potential has drawn the attention of policy makers. In the present paper the determinants of selfemployment rates of both men and women are investigated in the context of a two-equation model explaining both actual self-employment and the preference for self...

This study presents a systematic recognition of regional policies supporting new firm formation in Italy between 1997 and 2005, and performs an evaluation exercise (for the 1997- 2003 period) of their impact on gross entry, exit and net entry in Italian provinces. The analysis is conducted in relation to six different sectors, including manufacturi...

Worldwide there are less female than male entrepreneurs, whether measured in terms of newly founded or established firms. Not only are women less likely to be involved in entrepreneurship, they also tend to have a lower preference for entrepreneurship. The lower willingness of women to become entrepreneur may – at least partially – explain their lo...

This article investigates the determinants of new venture creation across industries and locations for 103 Italian provinces between 1997 and 2003. Allowing for differences in regional opportunities across industries, we investigate the impact of a range of factors, including policy initiatives, on new firm formation in manufacturing, retailing and...

There are various reasons why some entrepreneurs may be more overoptimistic at the start of their ventures than others. We distinguish between four broad categories of determining factors and three areas of overoptimism (income, psychological burden and leisure time) and empirically investigate those for a sample of Dutch start-ups. The first categ...

The Eclectic Theory of entrepreneurship isintroduced.The purpose of the theory is to provide a coherent,interdisciplinary framework for understanding and analyzing what determinesentrepreneurship.The determinants of entrepreneurship in Europeancountries are compared with those in the United States in order to test theusefulness of the Eclectic Theo...

To identify the determinants of entrepreneurshipin the Netherlands, the recent history of entrepreneurship is divided intothree periods.Between 1960 and 1982, entrepreneurship levels dropped as aresult of the demand for mass-produced products, the introduction of welfareand social security policies discouraging self-employment, and the Dutchpeople'...

This paper investigates differences between opportunity and necessity entrepreneurs in terms of socio-demographics, attitudes and perception of 'obstacles'. We use the 2004 Flash Eurobarometer Survey data. Explanatory variables include gender, age, education level and self-employed parents, risk tolerance, locus of control, perceptions of four 'obs...

The recent decline of entrepreneurship in France isinvestigated, as well as the factors that contributed to the development ofentrepreneurship and the role of government policy.The decline ofentrepreneurship between 1972 and 1998 may be attributed to high unemploymentrates and to the French government's tendency to support large businesses in aneff...

The degree to which Germany can be calledentrepreneurial is investigated, as well as the institutions, policies, andcultural factors that have influenced the development ofentrepreneurship.Until the advent of globalization in the 1990s, Germanyachieved impressive levels of economic performance and social harmony with itsSocial Market Economy. Organ...

Using Global Entrepreneurship Monitor data for 29 countries this study investigates the (differential) impact of several factors on female and male entrepreneurship at the country level. These factors are derived from three streams of literature, including that on entrepreneurship in general, on female labor force participation and on female entrep...

This study has investigated the factors influencing the probability of women and men to be(come) self-employed. Starting from a lower self-employment preference combined with a lower self-employment prevalence rate for women, the present paper sets out to investigate the underlying mechanisms behind these gender differences, distinguishing between...

This paper examines the interrelations between self-employment and unemployment rates for Spain in the period 1972-2004, comparing them with the general pattern observed for OECD countries. We apply the model as proposed by Audretsch, Carree, van Stel and Thurik (2005) to Spain. The divergence between predicted and actual unemployment levels in Spa...

This paper examines the interrelations between self-employment and unemployment rates for Spain in the period 1972-2004, comparing them with the general pattern observed for OECD countries. We apply the model as proposed by Audretsch, Carree, van Stel and Thurik (2005) to Spain. The divergence between predicted and actual unemployment levels in Spa...

The relationship between entrepreneurship, measured by fluctuations in the business ownership rate, and unemployment in Japan is examined for the period 1972-2002. We conclude that, although Japan's unemployment rate has been influenced by different exogenous shocks as compared to other OECD countries, the effects of entrepreneurship on unemploymen...

Ingrid Verheul (1975) graduated in Economics at Erasmus University Rotterdam in 1999. She started writing here PhD. thesis on female entrepreneurship in 2000. In addition to female entrepreneurship, her research interests include determinants of entrepreneurship and entrepreneurship education. Her work has been published in several international sc...

Using a novel country-industry level panel database with information on newly incorporated firms in 17 European countries between 1997 and 2004, we study how taxation of corporate income affects the size of entrants at the country-industry level. Our results, which are robust to changes in several assumptions, suggest that a one-unit reduction in t...

The influence of industrial structure, more specifically of business ownership, is investigated on the level of unemployment in Japan. The question is to what extent business ownership, i.e., entrepreneurship, can reduce the level of unemployment. It will be concluded that Japan is hardly an outlier when using a simple model of the relationship bet...

The present study aims at explaining female and male entrepreneurship from a country perspective. Explanatory variables are derived from three streams of literature, including the literature on the determinants of entrepreneurship in general, on female labor force participation, and on female entrepreneurship. To test hypotheses we make use of Glob...

ABSTRACT : This paper looks at how well Finland performs in high growth entrepreneurship and uses data from the Global Entrepreneurship monitor to benchmark Finland against other European countries. It is found that Finland’s prevalence rate of high growth entrepreneurial activity lags significantly behind most of its European and all of its Scandi...

Drawing on Bem's psychological theory of self-perception, this paper presents and tests a model that examines the impact of business accomplishments and gender on entrepreneurial self-image and explores the definition of entrepreneurship according to Vesper's entrepreneurial typology. Regression techniques are used to identify those business accomp...

This study attempts to create a better understanding of the role of entrepreneurship education in developing entrepreneurial qualities. Theory and practice are confronted. The paper discusses the extent to which entrepreneurship can be taught, and the way in which it should be taught. The focus is on the phase of initial education.

This paper investigates the extent to which HRM differs between female- and male-led businesses. A Control-Commitment Continuum consisting of several HRM dimensions is proposed. To test to what extent HRM systems and specific practices in female- and male-led businesses differ with respect to commitment-orientation, use is made of a panel of approx...