چکیده:
In this paper, the Cox proportional hazard model is used to answer several questions. In general, fourteen variables are applied in four groups: firm, industry, expenditure human resources specific characteristics as well. According to the previous literature in this field, the findings of this paper also show that the factors which affect life duration of firms are different between industries. Summing up, the life duration of manufacturing firm in Iran are positively affected by start-up size, profitability, efficiency, concentration rate, minimum efficient scale, industry growth rate, investment, advertising and education expenditure as well as labor force skills. While, entry rate of firms affect the life duration of firms, inversely. In term of policy, the findings of this paper confirm the importance of industry on the firm’s life duration and the necessity of paying more attention to this variable.
خلاصه ماشینی:
"The results showed a significant positive effect of firm start-up size, profitability, optimal size, concentration ratio and size of manufacturing industries plants on firm life duration in Portugal.
He used the employee characteristics as determinant for survival rates and a Cox proportional hazard model used to find the influence of education, labor force age and employer discrimination on the life duration of firms.
Similar to previous studies, the factors affecting the life duration of new firms can be classified in five groups included: firm-specific characteristics, industry-specific characteristics, expenditures characteristics, Human and environmental features which are presented in Table 1.
In this study, the Cox Proportional Hazard Model is used to investigate the effective factors on life duration of new firms in Iranian manufacturing industries in line with most other studies such as Mata and Portugal (1994), Audretsch et al.
In this study, industrial growth rate is calculated by the Equation 6: INDG=E – E(–1) (6) E(–1) The Life duration of existing firms can be affected by entry rate of new firms in the next period.
The results of this show that there are the positive and significant relationship between the start-up size, profitability and productivity of firms, concentration rate and the optimal size of the industry, the advertising expenditures, education and skills level of labor force.
5- Conclusions and Policy Recommendations Although, based on the existing literature, the life duration of firms is affected by various factors but, this subject about the Iranian manufacturing firms has investigated by 15 variables, classified into four groups (firm characteristics, industry, money, manpower) in this study."