4.1. Data
Survey data has been collected by submitting a structured electronic questionnaire to all the staff population of the University of Ferrara [
42]. The University of Ferrara is a medium university in the North of Italy and it represents a leading Italian university in terms of both technology transfer performances [
43] and scientific production [
44].
The population we refer to is composed of 1817 individuals on 31 December 2012 (This information has been collected at the Human Resources of the university). The questionnaire has been submitted through a web application, and we collected 358 completed answers, corresponding to 28% of the total population. Given the purpose of this work, to investigate the entrepreneurial intention of academic scientists we excluded non-research staff from the analysis, i.e., administrative workers and adjunct professors without a research position, remaining with a sample of 261 individuals, of a total population of 1260 researchers, which corresponds to almost 21% of the population. The sample is well distributed across academic position with just a slight underrepresentation of full professors and PhD students (See
Table 1 and
Table 2 below). Among scientific areas, we note that Social Sciences and Medicines are slightly underrepresented, while Technological Sciences are overrepresented. The Cochran Q test, giving an error equal to 0.54 (The general rule of thumb here is to accept values up to 0.5), supports our sample choice. Finally, we note that 35% of our sample is less than 35 years old, the 50% between 36 and 55 and the remaining 15% more than 55 years old.
4.1.1. Dependent Variable
Two dependent variables are used in the analysis. The first one we may refer to as “firm intention” (Firm_Int) and represents the intention of commercialize the research outcome through the creation of a firm, independently of also having the intention to exploit research results through other channels, such as selling patents, or to do nothing. In this case, the variable takes the value of 1 whenever the respondent answers Yes to the first question of
Table 3, whatever the answers to the other questions, and 0 otherwise. The second dependent variable may be referred to as “strict firm intention” (ST_Firm_Int) and captures the willingness of exploiting research results only by means of setting up a firm: we assign 1 only in the cases in which the respondents select items 1 but not the other items in
Table 3, and 0 otherwise. In so doing, we isolate the idea of setting up a business venture due to the research outcome, from other mechanisms of technology transfer. In our sample, about 57% of academics, 150 out of 261, express the intention of also creating a business venture (Firm_Int) if their research results could provide this possibility. When we focus on the idea of only creating a firm (ST_Firm_Int), this subsample of academics reduces to 77 individuals, corresponding to 29% of the sample.
4.1.2. Independent Variable
The main independent variables of our investigation represent proxies of intrinsic and extrinsic motivations. The questionnaire proposed that individuals evaluate the personal reasons for which they would have created a firm to exploit their research results, and the personal reasons for which they are not thinking of creating a firm. Among these items to evaluate, various motivations such as “increase the wellbeing of others”, “increase your own prestige“, “create relations within your workplace”, “make money” and so on are found. For each of these questions, the respondents were asked to evaluate the importance of these elements from 0 to 100. We conducted a principal component analysis on all these items which resulted in two components that can be referred to as intrinsic and extrinsic motivations, as explained below (methodology section) in details.
These represent our two main variables of interest. However, we included in the empirical exercise a series of other variables as identified by the literature to be antecedents of entrepreneurial intention. In particular, we control for the perceived feasibility and desirability of the individuals: following the literature on the topic, we included experience in having already created a firm, risk propensity, the perception by the individual of possessing the entrepreneurial and social capability to conduct a business, and the experience in having participated to other technology transfer projects of any kind. Moreover, we also included a variable that approximates the so called social norms in the academic environment [
7], i.e., the working context of the individual, which refers to the perception by the individual of the attitude of the research group/department in which the individual works, toward technology transfer activities. More specifically, the questionnaire asked respondents to evaluate from 0 to 100 the following questions: “Do you feel encouraged by your lab to pursue the economic promotion of your research activities?” Finally, we controlled for the scientific sector, age and academic position of the individual. The variables used in the analysis are described in the tables below (
Table 4 and
Table 5).
4.2. Methodology
First of all, in order to shrink the information on motivations, we run a Principal Component Analysis (PCA) on the variables of interest. In so doing, we are able to reduce the dimension of the covariates vector, preserving the original variance of the variables included in the PCA as much as possible. Seven variables that capture motivations were included in the PCA, as reported in
Table 6 below. These seven elements, grouped in two components, explain the 53% of total original variance (The full PCA results are available upon request from the authors). The choice of the two components has been made on the basis of the eigenvalues’ magnitude: we retained the components with eigenvalues larger than 1.
The two factors can be interpreted as representing the
intrinsic and
extrinsic motivations of the individual toward the potential creation of a firm. The questionnaire asked to respondents to evaluate from 0 to 100 the elements presented in
Table 6, under this heading: “If you were to create your own firm, this would personally…” Within the component of intrinsic motivations the following elements as stated in the questionnaire are grouped: “…give you the feeling of doing more for the wellbeing of others”, “…allow you to create relations with the structures of research development of your workplace” and “…enable you to improve considerably your curriculum vitae”. We can appreciate that these elements refer mostly to the willingness of creating a venture in order to obtain intrinsic rather than extrinsic advantages, such as reciprocity and self-determination. On the contrary, under the component of extrinsic motivations we find the following elements: “…lessen the abilities you have in your own professional field because the firm would keep you away from it”, “…allow you to make money”, “…make you take the risk of an unwanted break in a promising career”, and “…lead you to be preoccupied by technical, commercial or other issues linked to your firms, during your free time”. We can note that some of these elements (preoccupation issues and unwanted breaks) can be associated with “control”, that is, they create impositions typically associated with extrinsic incentives; moreover, we have the ‘make money’ elements which is another typical extrinsic incentive.
Their distribution of the components can be used in order to meaningfully observe the scores in their lower and upper quartile. Scoring in the highest quartile (75p) means that the individual is driven by a high degree of intrinsic (extrinsic) motivations with respect to the potential firm creation. The opposite for the lowest (25p). Considering that we can argue that an individual with a score of the motivation factor in the highest quartile has a high motivation, the opposite is true if the score is in the lowest quartile.
The empirical exercise proposes a probit model taking the following specifications:
where J =
PhDPostDoc or
AssFullProf1
where
Y is alternatively Firm_Int or ST_Firm_Int as described above. Controls include the main determinants of entrepreneurial intention, i.e., usual antecedents (experience, risk, abilities), social norms (academic environment), and the standard controls (sector, academic position). Intrinsic and Extrinsic motivations are variables constructed through the PCA (as explained above) of various questions available in the questionnaire. Exploiting the specification (1), it is possible to test for a relation between venture intention and intrinsic and extrinsic motivations, in order to answer to the first two research questions. We are also interested in evaluating the motivations role when the workplace of the academics supports (or not supports) the technological transfer (specification 1a). We address this issue by evaluating the intention probability in two cases: the first one when the workplace environment (variable
Context) has a value above the median and the second one when it has a value below the median. In addition, we answer the third research question by interacting the two motivation factors with academic positions (specification 1b). In doing so, we are able to capture both the role played by the age of individuals (the young are usually in the lowest steps of the academic career) and by the tenure (young researchers have usually short term positions) when related to the specific kinds of motivations.
Finally, with specification (2) we test the complementarity (substitutability) and the effect of the joint contribution of intrinsic and extrinsic factors to the intention to create a firm or, more generally, exploiting the research outcomes on the market. This allows us to answer the last research question.
In order to test for complementarities, we decided to dichotomise the two main components of Intrinsic and Extrinsic motivation: the result is a set of dichotomous variables (
Complementarities in specification 2). The dichotomisation is functional to test the existence of complementarities in two specific regions of the components distribution (Intrinsic Motivations and Extrinsic Motivations): when the score of each component is in the first quartile (25q) and in the last quartile (75q). We obtain two sets of states of the world: one for the first quartile and the other for the last quartile (
Table 7).
The way to test complementarities is based on theories and properties of supermodular functions (see for example [
45,
46] for empirical applications). In the present case, and following [
47], we can say that two variables,
x and
y in a lattice
Z, are complements if a real-valued function
F(
x,
y) on the lattice
Z is supermodular in its arguments. That is, if and only if:
Or, written in a different way:
that is, the change in
F from
x (or
y) to the maximum
is greater than the change in
F from the minimum
to
y (or
x): raising one of the variables raises the value of increases in
F of the second variable.
In our case, we consider the probability to have the intention of exploiting the research outcomes as a dependent variable, so our objective function is measured in terms of probability. As specified above, we have two sets of quadruplets that we use to substitute the two indexes of Intrinsic and Extrinsic motivations. Focusing on the first set of states of the world, as in
Table 6, we have shown that: the individual has low intrinsic motivation and low extrinsic motivation, his/her scores in both components are within the first quartile (1,1)25p, his/her scores are one in the first quartile and the other above the first quartile (1,0)25p or (0,1)25p, and both the scores above the first quartile (0,0)25p. The same holds for the second set of states of the world, which focuses on individuals having values of the Intrinsic and Extrinsic motivation indexes in the last quartile.
Using our notation, we can state that complementarity exists if the following inequality is satisfied:
where Ω
i is a vector of variables potentially influencing the venture intention
Y. The inequality shows that changes in the probability of having the idea of a venture when the motivations are increased are higher than the changes resulting from the sum of the separate increases of the two motivations. In our empirical application, we follow Hottenrott et al., (2012) and we specify our regressions to test for complementarities as:
The set of the four states of the world in each specifications (6) and (7) represents a lattice and the Y function is supermodular in the motivation couples, that is, motivations are complements, if the Inequality (5) is satisfied.
The operationalization of the procedure to test for the complementarities among motivations is quite straightforward. After having estimated the two Equations (6) and (7), we simply run tests on parameters restrictions. The parameters of interest are those associated to the states of the world variables: b1 for the state of the world (1,1); b2 for (1,0) and b3 for (0,1). The tests are Wald tests. The test is distributed as Chi2 statistic with one degree of freedom in the numerator, since we are testing a single linear restriction at a time, so we can apply the appropriate procedure for the
p-value adjustment in testing inequalities. For an appropriate reference see [
48], which, with an appropriate correction of the
p-value, allows us to test the following null hypothesis (as a one-sided
t-test): H_0: b2 + b3 ≥ b1. A result of the test against this H_0 leads us to conclude that we cannot reject the hypothesis of complementarities among our variables of interest. Hence, we can state whether we are in the presence of complementarity (b1 − b2 − b3 ≥ 0) between the couple of two motivations measured in the first and last quartile or, instead, if we are in presence of substitutability (b1 − b2 − b3 ≤ 0).