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Table 5 Missing and non-missing observations

From: Labour productivity among small- and medium-scale enterprises in Uganda: the role of innovation

Variable Number of missing observations Number of non-missing observations
Labour productivity (sales per worker) 247 451
Labour productivity (value added per worker) 570 128
Labour cost 288 410
Age 52 646
Age squared 52 646
Experience 28 670
Certification (yes = 1) 62 636
Tax rate (obstacle = 1) 5 693
Transport (constraint = 1) 1 697
Land access (constraint = 1) 27 671
Corruption (obstacle = 1) 6 692
Labour education (obstacle = 1) 7 691
Electricity (obstacle = 1) 1 697
Credit access (obstacle = 1) 21 677