Maximising the Benefits of Effective Competition in Public Procurement in Slovenia

Annex C. Regression results

 

	Dependent variable:
	Single bidding
	(1)	(2)
Constant	-0.249***	-3.201***
	(0.078)	(0.121)
procedureCompetitive dialogue	0.529***
	(0.170)
procedureNA	1.741***
	(0.045)
procedureNegotiated with publication	0.515***
	(0.065)
procedureRestricted	-1.252***
	(0.220)
procedureSmall value order	0.234***
	(0.017)
aydecp_bn_52		1.701***
		(0.052)
aydecp_bn_53		3.062***
		(0.050)
aydecp_bn_54		4.420***
		(0.051)
aydecp_bn_55		6.028***
		(0.055)
aydecp_bn_5NA		5.265***
		(0.069)
submp_52		-0.614***
		(0.031)
submp_53		-0.925***
		(0.035)
submp_54		-1.155***
		(0.034)
submp_55		-1.925***
		(0.036)
submp_5NA		-0.836***
		(0.059)
tender_isframeworkagreement1		-0.277***
		(0.030)
nocft1		1.182***
		(0.081)
tender_corrections1		-0.475***
		(0.023)
tender_description_length_med2		0.202***
		(0.023)
tender_description_length_med3		-0.050**
		(0.023)
month02		0.112**
		(0.052)
month03		0.084*
		(0.047)
month04		-0.001
		(0.046)
month05		0.107**
		(0.047)
month06		0.264***
		(0.048)
month07		0.388***
		(0.049)
month08		0.024
		(0.050)
month09		0.176***
		(0.049)
month10		0.203***
		(0.044)
month11		0.414***
		(0.048)
month12		0.299***
		(0.050)
monthNA		-1.174**
		(0.519)
number_suppliers2_52		-1.046***
		(0.232)
number_suppliers2_53		-1.122***
		(0.236)
number_suppliers2_54		-2.804***
		(0.260)
number_suppliers2_55		-3.472***
		(0.269)
multilot1		-0.260***
		(0.029)
ca_contract_value5a2		0.041
		(0.029)
ca_contract_value5a3		0.071**
		(0.031)
ca_contract_value5a4		0.090***
		(0.034)
ca_contract_value5a5		-0.079**
		(0.037)
ca_contract_value5aNA		0.046
		(0.037)
tender_year2018	-0.182***	0.213***
	(0.025)	(0.035)
tender_year2019	-0.249***	0.134***
	(0.026)	(0.036)
tender_year2020	-0.266***	-0.045
	(0.026)	(0.035)
tender_year2021	-0.229***	0.103***
	(0.026)	(0.036)
tender_year2022	0.026	0.368***
	(0.026)	(0.036)
tender_selectionmethodMEAT	0.204***	0.360***
	(0.022)	(0.028)
tender_selectionmethodNA	0.174***	0.440***
	(0.042)	(0.055)
tender_supplytypeNA	-0.651***	-0.276
	(0.175)	(0.231)
tender_supplytypeServices	0.264***	0.434***
	(0.060)	(0.079)
tender_supplytypeWorks	-0.680***	-0.496***
	(0.076)	(0.096)
Observations	96,559	96,559
Log Likelihood	-58,389.530	-38,687.500
Akaike Inf. Crit.	116,937.100	77,596.990
Note:	*p<0.1; >**p<0.05; >***p<0.01