1. Introduction
Startups are an engine of social and economic development [
1]; that influence the reduction of unemployment [
2,
3] and poverty [
4], and favour investment, the growth of the local economy and the improvement of the quality of life [
5,
6]. Currently, small and medium-sized enterprises (SME) represent 90% of the business fabric in developed countries, a figure that increases to 95% in developing countries. In addition, startups are strategic in innovation, technological advancement, and the viability of ventures [
7,
8].
Entrepreneurship support during the incubation stage constitutes a priority activity in business incubators and means a strategic factor in the success of the venture and its sustainability [
9]. This phase favours the creation of value, technology transfer, the promotion of innovation, cluster development and the coordination of participation of universities, research institutes and the business community [
10].
There are multiple nomenclatures to refer to business incubators; such as germinators, business hotels, business incubators, business boutiques, entrepreneur centers, innovative business center, entrepreneurship center, business innovation center, new business centers, business promotion centers, business development support centers, business school, etc. [
11,
12]. In each case, depending on the country, the socioeconomic context, and other factors, there will be differences between them. However, business incubators are frequently non-profit entities [
13] and whose purpose is to support entrepreneurs from the initial idea to their full establishment in the market.
The EU (DG XVI) defined business incubators as public and private interlocutors, which develop a complete and integrated system of activities and services of excellence for small and medium-sized enterprises, with the aim of creating and developing innovative activities [
14].
Business incubators provide entrepreneurs with information, advice, management guidance, accommodation spaces; whether shared (pre-incubator or coworking) or individual (office), training programs, networking, events and connection activities, networks of mentors and other resources, and have become an important element of the business ecosystem, contributing greatly to the value generation [
15,
16].
A strategic objective of the incubators was to facilitate the ideal framework for the creation, development, and maturity of business initiatives. They provide services to their clients and configure an ecosystem that increases the chances of success and venturer's survival. Through incubators, companies receive training, advice, technological and financial links in their initial stage, a time of greatest vulnerability [
17]. In addition, the incubator promotes the culture of innovation, business promotion and the training of new entrepreneurs [
18].
The success of the business incubator is measured by the survival rate of the companies incubated or hosted in it [
19]. According to the Small Business Administration in the United States (2008) the success rate of incubated companies was 80%, while this percentage dropped to 38% in startups not incubated in a business incubator [
20]. In this sense, ventures linked to incubators showed a greater probability of survival [
21].
According to the National Business Incubation Association (NBIA), business incubation is an efficient and dynamic process that provides managerial help, aimed at obtaining economic resources and exposure to “Critical Business” that reduces between 10% and 15%. failure rate in the early stages of the company [
20].
Several authors considered the role of business incubators to be positive in the economic transformation of territories [
21,
22]. In addition to promoting the strategy of support lines for entrepreneurs, they also function as a canter of attraction, retention and expansion of companies. Business incubators develop services for entrepreneurs and act as a focus for innovation of new projects, products, and services. The coordination of the different business incubators favours an efficient system of aid to entrepreneurs that guarantees a dynamic and sustainable flow [
23].
In Spain, business incubators offer business advice and subsequently monitor the venture for several years. Furthermore, since COVID 19, virtual incubators have proliferated, which support the entrepreneur without providing a physical space to carry out their activity [
24,
25].
According to [
13,
26,
27] there are different phases that the entrepreneur goes through in the business incubator: Phase 1. Initial advice, First contact. Doubts are resolved, the idea is presented, the resources available are optimized, etc. It is accessed through the appointment service. Phase 2. Pre-incubation, in this phase the business plan is carried out in an interval of 4 to 6 months and with a technical advisory team. In the early stages of launching a project is where the idea is generated, the business model and the value proposition are defined. In this stage the commercial and business opportunities are assessed [
28], but on the other hand, in this phase the abandonment rate is higher [
29].
Once the pre-incubation phases and the Business Plan are completed, the “birth of the entrepreneurship” begins, where it reaches a legal entity to operate in the market. Incubators facilitate the establishment of the company, streamlining administrative procedures, with a reduction in time and costs [
30]. After the establishment of the venture, the Incubation phase begins. Incubation is divided into two phases, depending on the services provided by the incubator: basic and advanced incubation. Phase 3. Basic Incubation, in this stage the incubator provides spaces (coworking), infrastructure, tools, resources and contacts necessary for the creation and development of products and services. Phase 4. Advanced Incubation, the incubators provide additional services to those of the previous phase, such as: training, networking, participation in events, connection activities, mediation, testing laboratories, among others. During this phase, agreements with partners and strategic partners are promoted; both for financing, scaling of production and internationalization of the venture. The services provided by business incubators are variable depending on the type of services, the clients, and the structure of the organization [
31].
Business incubators are differentiated by the services offered; from those focused-on technology, to others focused on business development [
32]. However, all of them provide active support to entrepreneurs through training, administrative support, office space and infrastructure, technology transfer, assistance to help reduce time to market, consulting services, networking, and the funds needed to help grow the new business [
33].
Finally, the startups will abandon business incubators and the incubation will be assessed through the viability of the company. Graduation rate is the response variable most frequently used to measure incubators’ success [
34].
Several references on business incubators were found [
35], although few were focused on the phases that make up business incubators and the business model [
36,
37]. To deep knowledge of it is of great interest since the incubation phases could be associated with the viability of the ventures [
38]. In this sense, when it comes to incubator business models, the nuances of the value creation perspective are largely ignored and treated as a “black box” [
39].
The effect of business incubators on the ventures' success has been widely analyzed, but there is a gap regarding the role played by the incubation phases. In this sense Alayoubi et al. [
40] related the effect of knowledge of strategic objectives on the achievement of technological innovation at the Palestine Technical College. The reported results indicated a strong positive elevation between the strategic requirements and the innovation achieved (leadership, pioneering thinking, pioneering culture, strategic resource management).
Shahada et al. [
41] were focused on how to improve the performance of business incubators in the Gaza Strip. Owda et al [
42] identified personal variables and their effect on promoting job creation in the Gaza Strip through business incubators. In this case, the researchers analyzed 92 projects in business incubators in the Gaza Strip, addressing the study of gender and technical knowledge.
Benavides-Sánchez et al. [
43] studied business incubators and the role developed by universities as a catalyst between student entrepreneurs, teachers, researchers, and investors. The need was found to build multidisciplinary work teams, with collaborative work networks.
Habiburrahman et al. [
44] delved into the concept of incubators and identified critical success factors, such as synergistic products, processes, innovation management, communication, culture, experience, information technologies, innovation skills, functional skills and implementation skills. The eleven factors were similar in incubators and startups, although with a different order of priority.
Consequently, incubators constitute key elements in incubators and are fundamental for business development [
45,
46], sustainable development [
47], and territorial cohesion [
48,
49,
50,
51]. Likewise, it is complex to quantify the success of business incubators, because there are different metrics, indicators and approaches, such as: business innovation [
52], efficiency [
53], performance [
54], the entrepreneur's perspective [
55], among others.
Although there are few studies that analyze business incubators with the incubation phases approach [
56,
57]. In this research we considered the business incubators in Spain globally, assuming their diversity, and their stage of development. Their grouping according to their variability and the incubation plan they are developing is of great interest; both for the development of in situ improvements and for the development of specific sectoral policies that enhance their development [
58] and improve survival or graduation rates [
59].
Therefore, this research seeks to deepen knowledge of the stages that startups go through in business incubators during the incubation phase. How have the business incubators as facilitating institutions of entrepreneurship been determinants for the survival of startups? For this purpose, a typology of business incubators in Spain was developed in relation to the incubation phases of the start-ups incubated.
The typology was built based on the activity of the incubators, and they were subsequently characterized. The incubators were classified according to the indicators of the different phases of entrepreneurship incubation: 1: Spreading Entrepreneurship; Phase 2: Pre-incubation; Phase 3: Basic-Incubation and Phase 4: Advanced incubation. The characterization of the typology of incubators was carried out with the graduation variables and other operational variables.
This research will help to identify the different types of incubators existing in Spain according to its four incubation phases (Spreading entrepreneurship, Pre-incubation, Basic incubation and Advanced incubation). The results will favour to improve the business incubators, acting on the key factors in increasing the graduation rate. This work will serve to promote specific policies and strategies in business incubators.
After this introduction and objectives, this article will be organized as follows: in
Section 2, the methodology will be presented; the population, the survey applied, and the multivariate statistical analysis used. In
Section 3, the results will be described, firstly the typology of business incubators and then its characterization.
Section 4 will provide a discussion of the results. To end,
Section 5 will describe the conclusions, with the limitations of the study and future lines of research.
4. Discussion
The progress of startups in business incubators was segregated into four phases: Spreading, Pre-Incubation; Basic Incubation and Advanced incubation [
12]. In this research, 33 variables were used that have different effect on the incubators' success; Spreading (9), Pre-Incubation (9); Basic Incubation (9); and Advanced incubation (6). In addition, a group of response variables were selected, related to the survival rate of the startups (9 variables) and 20 general or operational variables were considered for characterization.
33 initial variables were analyzed on the partial correlation matrix and the preliminary models, in order to reduce the number of variables. The principal components analysis verified, on the one hand, the goodness of each of the proposed variables and secondly, its reduction to eight factors or latent variables that explained 73.47% of the existing variability. The first factor was strongly linked to Phase 2 of Pre-Incubation, the second factor was associated with the variables of Phase 1 of incubation (Spreading) and the third factor was related to Phase 3 of incubation (Basic Incubation). These three factors explained 41.91% of the variance. The remaining factors were mainly linked to phase 1 of Spreading. Three groups or clusters made up the population of Spanish business incubators , which were subsequently characterized with the output variables; both general and graduation. Group 1 (16% of business incubators) was the smallest and had markedly negative values in the centroids with respect to the first three factors. This group represents those nurseries with more structural deficits and lower graduation rates. Group 2 (30% of the sample) constitutes the leading group with positive values in all factors and strongly positive in factors 1 and 2. It brings together the largest business incubators and highest graduation rates. The analysis also showed factors where it is necessary to focus improvements. Group 3 (54%) is an intermediate group with positive values in its factors, although low and close to zero. This group is clearly the recipient of improvement policies and within it different strategies are developed.
Business incubators with better graduation results (Group 2 and 3) showed a higher level of network use, marking significant differences with those of Group 1. On the other hand, those incubators located in industrial and technological parks improve the results, and therefore On the contrary, those in the rural world or located in cities decrease their results. The determining factors of success in the startups hosted in the business incubators were linked to the success of the pre-Incubation phase, secondly, the dissemination of the entrepreneurial spirit (Spreading) and the third factor was related to the basic Incubation (Phase 3).
First factor obtained, was linked to preincubation variables and was focused on an incubation's short phase with a duration between 4 and 6 months. However, this factor strongly explained the high variability between business incubators in Spain. On the other hand, it was associated with the graduation rate and survival of startups. In this phase the entrepreneur is carrying out his Business Plan with the support and advice of the business incubator technicians. Entrepreneurs in this phase were also offered expert advice and information on financing sources [
60].
The appropriate building of the Business plan was positively associated with the survival of the startups and their viability in the market [
75]. The business plan is a tool that makes it easier for organizations to chart a route to achieve objectives, consider obstacles and propose solutions for the development of activities in the future [
76]. Likewise, the Business plan helps to forecast a contingency plan in the event of possible disturbances [
77,
78]. Also, the results indicated the importance of a competitive operative staff in this first phase of preincubation of startups.
The second factor obtained in the analysis of principal components was the diffusion of the entrepreneurial spirit (Spreading). According to Funcas [
60], incubators in this phase constitute a reference for startups, offering expert support, training sessions, social networks, training in tools, among others [
52]. Although it is a priority for entrepreneurs to discover the link between the startup and the incubator and how this alliance contributes to graduation [
60], it is a phase of information gathering, where the entrepreneur has not started the execution of his project, but has gone to the business incubator to resolve doubts, advice and obtain guidance regarding his business idea [
79]. At this initial moment, the entrepreneur consults with different advisory services and goes to different incubators, so the appropriate approach to the project and his trust in the khow-how of the staff constitutes an element of competitiveness compared to other incubators. Quality of the mentoring provided within these incubators depends on the incubator staff, emphasizing their fundamental role in guiding entrepreneurs in business development and strategy formulation [
80].
Regarding the third factor, basic incubation, according to the Funcas ranking, in this phase, entrepreneurs have already matured their business ideas, studied their viability and, therefore, converted their idea into a business project. It is the go to market phase in which the planned project is carried out [
33]. It is the most critical stage of an entrepreneur in which entrepreneurs must be provided with an especially favourable growth environment, and a series of specific resources and services must be made available to them, which allows them to successfully reach the maturity of the project. This factor is a priority according to the study by Funcas [
60], however the results of the research relegated it to third place and it only explained 6.86% of the variability.
The variables that made up advanced incubation did not appear to be very relevant in the study of the phases of startups in the incubator. According to [
81,
82,
83,
84] in the advanced incubation phase, companies develop internationalization strategies, seek new financing, scale up production and enter a growth phase. During the previous phases, pre-incubation and basic incubation, startups face the “valley of death”, a stage in which companies are developing their business project and are not yet solvent, they do not generate enough profits to cover all their costs and that lasts until sales stabilize.
Once this period has passed, around two to three years of life (depending on the economic sector in which the startup operates), the companies begin to scale, so the support of the Business incubators favours the projects, but it is not as definitive for their survival as in the previous stages [
85,
86]. At this stage, companies normally need capital to finance their growth or to make the leap into international markets. This capital is not always provided by business incubators, so the importance of the incubator for the survival of the company is not so relevant.
When face up the clusters obtained with the operative variables and those related to the success rate, differences between clusters were found. Communication variable determined significant differences between clusters and the results. Communication is appropriate in Cluster 2 and Cluster 3, and poor in Cluster 1. Communication was related to the graduation rate. So, an improvement in communication has an impact on improving results and contributes to avoiding business failure [
87].
These results are in accordance with analysis of relational coordination [
59] and Tailored Capabilities [
68]. In this sense, this analysis is aligned to the study by [
88] who related internal and external networks to the incubator and business growth. It has been reported a positive correlation between networks, performance, facilities offered by the incubator and link with the university [
89].
The dimension showed significant differences between clusters, so that the small incubators are located in Group 1, the medium ones in Group 3 and the large ones in Group 2. Likewise, the dimension was linked to the graduation rates. That is, the larger the dimension, the structure of the business incubators was modified, and the graduation rate was improved [
68,
69]. Normally, a larger business incubator will have more capital, more staff and possibilities to support a greater number of entrepreneurs, as pointed out by several authors [
90].
The business incubators of Group 2 and some of Group 3 showed high success rates, and were significantly linked to positive values in: a) the existence of agreements for the installation of the company outside the incubator [
31]; b) after-sales service or the regular maintenance of contact between the incubator and the enterprise, once it leaves the incubator [
73]; c) the existence of training and monitoring actions for graduates [
18,
52]; d) the percentage of ventures financed with private funds [
90]; e) high rates of continuity of activity once the incubators were abandoned [
19,
21,
59,
75].