Model 2.3.0 / editorial plan
The planned series separates source findings from scenario assumptions. ProcuraCost outputs are not presented as measured organisational effects or procedure recommendations.
Planned topics
Methodology
Procurement workflow design, competition and contract design are separate dimensions. The model does not replace them with a composite index or technology label.
Focus: Calculation contract
Procurement practice implication: Before calculation, document the activity maps, competition exposure and contract design separately.
Competition and contractor selection
In the studied Hungarian market, the structural model indicates approximately 6 per cent higher prices and selection of contractors with 28 per cent lower productivity as measured in the study. The study covers contracts below an approximately HUF 25 million threshold. Model 2.3 uses only a bounded transfer of the price channel as an explicit stress range.
Focus: Source review
Procurement practice implication: Measure competition exposure independently of workflow design. Transfer beyond the studied population requires an explicit assumption.
Szucs (2024), primary publication ↗Contract design and formal amendments
The 0.077-0.105 estimate concerns additional formal amendments per contract-year for a simultaneous one-standard-deviation increase in each of seven rigidity categories in French car-park contracts. It is a frequency, not an event probability or an effect of workflow design. It does not set the amendment-cost differential in model 2.3.
Focus: Source review
Procurement practice implication: Record clause design independently of activity count, role effort and procurement duration.
Beuve, Moszoro and Spiller (2023), primary publication ↗Result range
The low, central and high range tests declared assumptions, not statistical confidence. The outer range crossing zero does not prove a sign reversal under shared assumptions.
Focus: Interpretation boundary
Procurement practice implication: Interpret the central result together with cost drivers, the outer range and the local assumptions register.