Measuring Efficiency and Productivity Growth of New Technology-Based Firms in Business Incubators: The Portuguese Case Study of Madan Parque

Table 4

Correlation coefficients of inputs and outputs.

	Employees	Salaries	R&D	Space	Sales	Clients	Products
Employees	1,00
Salaries	0,88	1,00
R&D	0,65	0,67	1,00
Space	0,95	0,74	0,54	1,00
Sales	0,84	0,90	0,61	0,80	1,00
Clients	0,39	0,20	0,37	0,43	0,21	1,00
Products	0,61	0,49	0,64	0,51	0,46	0,40	1,00