Abstract
Small and medium-sized enterprises (SMEs) are supposed to be less likely to conduct formal R&D because of the lack of financial resources, weaker competencies, and the absence of scale and scope economies. These limitations may be overcome when an SME belongs to a business group. Empirical studies have shown that firms belonging to business groups have a higher propensity to engage in R&D. We demonstrate that this higher propensity depends on the ownership of controlled companies, besides the presence of coordination mechanisms. We develop a model, and we empirically test its predictions using a data set of Italian SMEs operating in the manufacturing sector. From the model we derive three main implications: (1) there is no difference in R&D propensity between standalone firms and firms at the bottom of groups; (2) head and intermediate firms have a higher R&D propensity than standalone firms and firms at the bottom of the group; (3) the intensity of R&D depends on the ownership of controlled firms and on their size. Overall, the results of the empirical analysis are in accordance with the implications of the model.
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Notes
Also, most countries have specific legislation that defines business groups because firms that control other firms are required to provide consolidated accounts. It is control that is essential for delimiting the area of consolidation. The definition of business group used in this article is the one normally adopted by statistics agencies (Eurostat 2003).
See definitions in Sect. 2.
The group represented in Fig. 1 is an example of a vertical group (pyramid), i.e., a group where all companies except the head are controlled by other companies. In the horizontal group form, all companies are directly owned by the head/entrepreneur. Here we do not consider horizontal groups because our focus is firms that control other firms. Also, as we note in the empirical section, horizontal groups represent a minority of business groups.
Boldrin and Levine (2008) question this conventional view.
There is an important stream of literature, starting from D’Aspremont and Jacquemin (1988), that models R&D decisions with a game theory approach. This literature is interested, among others, in highlighting the differences between non-cooperative and cooperative decisions in R&D and their implications in terms of social welfare. Although these questions are relevant and interesting, they are beyond the scope of the present article.
We obtained similar results with a model in which R&D spending is targeted to reducing fixed costs rather than marginal costs.
By R&D propensity, we mean the decision to invest or not in R&D. R&D intensity refers to a measure of R&D spending.
The data set provides appropriate sample weights to reproduce the population. We performed the empirical analysis for the weighted and the unweighted samples and obtained similar results. In the article, we provide the results for the unweighted sample. The other results are available on request.
Firms with <10 employees are not included in the Community Innovation Surveys.
The estimates also exclude horizontal groups (see footnote 3), which represent a minority of business groups (about 6 % of the total).
The Capitalia survey defines a group as a set of firms directly or indirectly controlled by the same people or the same company.
Suppose a group is composed on n firms whose size is: x 1 , x 2 , … x n . Assume also that we are considering firm 1 (e.g., the head of the group). Then the variable Spillover 1 is equal to log(x 2 + x 3 + … +x n ). We calculate Spillover 1 as log(∑ i x i − x 1) since the Capitalia data set provides us the whole size of the group (∑ i x i ).
As a robustness check, we also excluded the variables Competitors and Hiving off, both significant in the selection equation, but not in the outcome equation; the results were similar.
The VIF is around 1 and the condition number is around 16, indicating the absence of multicollinearity problems.
The Capitalia data set provides the ownership structure (type and share of owners) for the firms surveyed, but not their controlled companies.
We thank an anonymous referee for suggesting this methodology.
For simplicity, we assume that below I there are only firms at the bottom and not other intermediate firms.
Indeed, the condition 2(b + 1) > d 2 is required to have a negative definite Hessian matrix.
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Acknowledgments
The authors would like to thank the participants at the IX Wokshop c.MET-05 held in Ancona (Italy) in June 2012, the participants at the XXIII AiIG Annual Conference, held in Matera (Italy) in October 2012, the editor and two anonymous referees for providing useful comments and suggestions.
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Appendix: Proof of results
Appendix: Proof of results
First, let us consider the profit functions of firms S and B. Thanks to definitions 4 and 5 and assumptions 1, 2 and 3, we have that:
Since Π S = Π B, r *S = r *B . Therefore firm S decides to engage in R&D spending (r *S > 0) if and only if firm B also does so. This proves Result 1.
In order to show Result 2 let us begin by considering the profit function of a firm S [see (1)]. Now let us consider the I firm. From definitions 3 and 6 and assumptions 1, 2 and 3 for firm I, the profit function is:Footnote 18
Now, note that if a firm decides to engage in R&D it is because its benefits are greater than its costs. This means that:
Since ∑ j≠I α I,B s r I x j > 0, if (2) is satisfied for some positive values of r S , (3) is also satisfied. However the converse is not necessarily true. A similar argument holds for firm H. This proves Result 2.
In order to show Result 3, consider again the profit function for a generic firm I.
First order conditions for an optimum are:
We thus obtain:
Note that r I* > 0 implies that 2(b + 1) > d 2 and implies also that second order conditions for a maximum are met.Footnote 19
It can be easily checked that r I* is increasing with α I,j and s x j .
In the case of a Head, the profit function is similar:
and so the optimal amount of r H*:
Also, in this case, it can be easily checked that r H* is increasing with α H,j , β H,j and s x j .
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Guzzini, E., Iacobucci, D. Ownership as R&D incentive in business groups. Small Bus Econ 43, 119–135 (2014). https://doi.org/10.1007/s11187-013-9529-1
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DOI: https://doi.org/10.1007/s11187-013-9529-1