5. Discussion and conclusion
This study empirically examines the association between sales growth and employment as a proxy for job generation. In addition, three control variables were included. Three models were used to analyse the data set of 13,548 SMEs for the 2009- 2012 period.
The overall findings indicate that, on average, the employment level among the sampled firms is significantly positively related to sales growth, suggesting that growing SMEs tend to hire more employees than do other firms. This result is in line with those of previous studies from various countries (Birch and Medoff, 1994; Funke et al., 1999; Schreyer, 2000; Voulgaris et al., 2005; Moneta et al., 2013), further indicating that SMEs that achieve competitive advantage have better opportunities to invest in hiring employees. In addition, the size and age control variables included in the estimations positively influence the employment level. Taken together, this indicates that larger, established, high-growth SMEs are more likely to hire employees than are other firms.
The results concerning the impact of size and age on employment rate support those of a number of previous studies (Hall, 1987; Broersma and Gautier, 1997; Oliveira and Fortunato, 2006; Criscuolo et al., 2014; Yazdanfar and Öhman, 2015), although they stand in contrast to the results of Aga et al. (2015), Pyo et al. (2016) and Dogan et al. (2017) regarding the size variable, and the results of Voulgaris et al. (2005) and Aga et al. (2015) regarding the age variable. The positive effect of size on employment level implies that larger SMEs may be better placed than smaller ones to obtain financial resources, i.e. equity capital and/or external financing and to use economies of scale to improve their performance in terms of creating jobs. In addition, older SMEs, in agreement with the resource-based view, acquire resources gradually over time and are more likely to have better access to financial and other resources than are younger firms (Autio, 2005; Yazdanfar and Öhman, 2015). Moreover, the significant impact of industry affiliation on employment rate is consistent with results obtained by Evangelista and Savona (2003).