Performance Indicators for Centralized Public Procurement

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(Some) Performance Indicators for
(Some) Performance Indicators for
Centralized Public Procurement
Centralized Public Procurement
Gian Luigi Albano
, Ph.D.
Head of R
esearch
Consip S.p.A. - 
the National Central Purchasing Body, 
Italy
Email: 
gianluigi.albano@consip.it
www.gianluigialbano.com
Istanbul, 28 May 2014
2
Roadmap
 
(Some of ) The economic effects of demand aggregation
Value for money (through different channels)
Inclusion of SMEs
Market dynamics
Transaction costs
3
(Some) Relevant performance indicators
 
Value for money
Savings
Inclusion of SMEs
Degree of success
Market dynamics
Concentration/
entry-exit indexes
Economic dimension
Perfomance indicator(s)
4
Measuring savings
 
Two main problems :
The savings estimation methodology by the Italian Institute of Statistics
(ISTAT) (1/2)
Step 1. Derive prices of comparable products/services purchased through and outside of Consip
frame contracts (FCs)
Comparable prices are derived by using a 3-step procedure:
1)
Public bodies are asked to provide the prices of a given set of products purchased through and/or
outside of Consip FCs (
p
consip
 and 
p
no-consip
 respectively);
2)
The monetary value of products features which are specific to purchases made either through or
outside of Consip FCs (
β
consip
 and 
β
no-consip
) is evaluated;
3)
The reported purchasing prices are cleaned of the value of product features which are specific to
Consip or non-Consip purchasing contracts, that is:
 
π
consip 
= p
consip 
– β
consip 
 and  
π
no-consip 
= p
consip 
– β
no-consip
5
π
consip 
& 
π
no-consip
 are prices of comparable products purchased through and
outside of Consip’s FCs respectively
6
Step 2. Estimate the value of realized savings from purchasing through Consip’s FCs
Savings are obtained as the percentage difference between the prices of comparable products
purchased under and outside Consip contracts, that is, by computing
 
The savings estimation methodology by the Italian Institute of Statistics
(ISTAT) (2/2)
7
Estimation Process
The Methodology in a simple picture
 
Results
 
Response rate
Non-response bias
 
 
8
The 2012 Survey
Distribution of the questionnaire
A sample of 1.216 Central and Local Public bodies were asked to participate in an
informative survey which aimed at collecting detailed information on the level and
composition of public expenditure with respect to the following set of products, among
which: office furnitures, car rentals and car purchases, meal vouchers, fuel, paper
reams, gas, photocopiers rentals, PCs, telephone and data networks, servers, lighting
services, Microsoft Office software, laser printers, mobile and landline telephone
services
Level of participation
The 2012 survey edition was characterized by a satisfying response rate of over 30%
Potential limitations
A
 low response rate can give rise to sampling bias if the nonresponse is unequal among
the participants regarding observed or unobserved characteristics
The estimation process
Organizing the Dataset
The collected data were elaborated and organized in order to:
create homogeneous variables describing products characteristics across different public
bodies;
construct clusters of public bodies according to their geographical and institutional
characteristics;
create time-dimensional variables on the basis of invoice dates to account for possible price
fluctuations of typically seasonal products (e.g., gas);
identify whether or not products/service had been purchased through Consip’s FCs
Regression estimates
The impact of products-specific features on prices was estimated so as to derive purchasing prices
of 
comparable
 products bought through and outside of Consip FCs;
Robustness check
The preferred specification model is finally selected according to standard goodness of fit
indicators
9
Regression Estimates: Model Specification and Selection
The estimated models take the following form:
where:
p
    is the purchasing price of each product as reported by the administration;
X
z
  represents the set of each product’s characteristics which are thought to affect its purchasing price,
with z=1,…,n;
b
z
   
is the 
monetized value 
of each product’s characteristics, with 
ß
consip
 and 
ß
no-consip
 
being the monetary
value of product features which are specific to purchases either under and outside Consip’s FCs,
respectively;
ε
   is a residual component, including the influence of unobserved factors on purchasing prices
10
Prices of comparable products purchased through and outside of Consip’s FCs contracts are obtained as
the difference between the purchasing price p and the value of those features which are specific to
purchases either through or outside of Consip’s FCs (
ß
consip
 and ß
no-consip
 
):
Estimated Savings
Estimated savings from purchasing under Consip contracts are computed as the percentage
difference between the prices of comparable products purchased through and outside of Consip’s
FCs by type of purchasing body within each geographical area:
11
12
Inclusion of SMEs: The Italian Government’s e-Marketplace (the MePA)
The MePA was launched in 2003:
 
- to promote 
electronic purchasing
 (consistent with EU directive)
 
- to streamline purchasing processes
 
- to facilitate 
SMEs 
access to low-value procurement market
 
- since July 1
st
 2007 compulsory for central bodies (below EU threshold)
Onboarding of the supply side is of paramount importance since it affects:
 
- the variety of supplies (and thus the level of demand)
 
- the level of competition in the long run
Identifying the most relevant factors affecting
suppliers’ success
 is above all instrumental to tailor
marketing strategies
 towards the supply side
13
Policy relevant question
Policy relevant question
(Main) Performance indicator for the MePA
Explaining the degree of success of micro, small, medium (and
large) firms on the Italian public e-marketplace
How effective is e-procurement in opening up public
procurement market?
14
Purchasing tools on the MePA
Public bodies (PBs) can use 2 different purchasing tools:
The 
Direct Purchase (DP)
Direct Purchase (DP)
 
allows PBs to select goods and services from e-
catalogues and buy at the posted price (
click-and-buy purchase
)
The
 
Request for Quotation (RFQ)
Request for Quotation (RFQ)
 allows PBs to select a contractor through an
on-line 
simplified price/quality competition
 among those firms invited to submit a
tender
15
 Distribution of the number and mean value of DPs (€) per firm’s size
 
         Descriptive statistics of DPs in the 2005-2010 sample
16
         The Econometric Model (1/2)
Ordered Logistic Models (OLM) approach
Ordered Logistic Models (OLM) approach
:
Appropriate since our dependent variable is a categorical one. The value per each firm’s class:
1.
Micro firms:         
 
Y=1
2.
Small firms:          
 
Y=2
3.
Medium firms:      
 
Y=3
4.
Large Firms:      
 
Y=4
Where 
M
 stands for the size of the firm (
1 = micro, 2 = small, 3 = medium, 4 = large
), 
X
 is
the vector of explanatory variables, and 
β
 are the estimated coefficients
17
Value of the contract
Variety of the catalogues (posted by suppliers)
Distance effect
Notice Type (ICT and non - ICT)
Nature of the public body (central and local)
         The Econometric Model (2/2)
18
 Main Findings (1/2)
19
 Main Findings (2/2)
20
 
Probabilities of DPs from classes of suppliers for ICT and the Centre
21
Estimated probabilities for non-ICT notices and all geographical
locations 
but
 the Centre
 
22
Main policy implications
+
Reputation mechanisms for reducing moral
hazard/anonimity
1
2
Onboarding of SMEs requires consideration of
several dimensions
23
The impact of a CPB’s action on the market structure and dynamic can be analyzed
through indicators relying on data based on the CPB’s procurement initiatives only,
typically, Framework Contracts or Agreements (FCs or FAs)
Such indicators should be computed and evaluated on the single market/category
basis and used:
to compare different markets among each other
to analyze the dynamics of single markets
Evaluating the impact on a Central Purchasing Body (CPB) on
the market
24
Participation
N. of bids / N. of lots
N. of bidding firms / N. of lots (takes into account temporary groups of firms)
Concentration
Turnover of the top 3 suppliers in all the editions of the FA / Total turnover of all the
editions of the FA
Participation patterns
Entry index: N. “new” firms bidding at time t / N. bidders at time t
Exit index: N. firms bidding at time t-1 but NOT at time t / N. firms bidding at time
t-1
Some Indicators (1/2)
25
N. Bids per Lot
45
78
78
61
43
35
16
7
3
1
12%
21%
21%
17%
12%
10%
4%
2%
1%
0,3%
Absolute figures indicate the
absolute number of lots
E
x
a
m
p
l
e
Some Indicators (1/2)
26
Entry index
:
 
N. 
“new” firms bidding at time t / 
N. 
bidders at time t
Exit index
:
 N. firms bidding at time t-1 but NOT at time t / N. firms bidding at time t-1
Exit index vs. Entry index
mean values over (n) editions
of each framework contract
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The presentation by Gian Luigi Albano, Ph.D., outlines performance indicators for centralized public procurement, including economic effects of demand aggregation, value for money, inclusion of SMEs, market dynamics, and transaction costs. It also discusses relevant performance indicators such as savings, degree of success, and concentration indexes. The methodology for estimating savings by the Italian Institute of Statistics is detailed, involving deriving prices of comparable products/services and estimating realized savings from purchasing through centralized contracts.

  • Centralized Procurement
  • Performance Indicators
  • Savings Estimation
  • Economic Effects
  • SME Inclusion

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  1. (Some) Performance Indicators for Centralized Public Procurement Gian Luigi Albano, Ph.D. Head of Research Consip S.p.A. - the National Central Purchasing Body, Italy Email: gianluigi.albano@consip.it www.gianluigialbano.com Istanbul, 28 May 2014 Classification: Consip public

  2. Roadmap (Some of ) The economic effects of demand aggregation Value for money (through different channels) Inclusion of SMEs Market dynamics Transaction costs 2 Classification: Consip public

  3. (Some) Relevant performance indicators Perfomance indicator(s) Economic dimension Value for money Savings Degree of success Inclusion of SMEs Concentration/ entry-exit indexes Market dynamics 3 Classification: Consip public

  4. Measuring savings Two main problems : Reference price(s) Heterogeneity 4 Classification: Consip public

  5. The savings estimation methodology by the Italian Institute of Statistics (ISTAT) (1/2) Step 1. Derive prices of comparable products/services purchased through and outside of Consip frame contracts (FCs) Comparable prices are derived by using a 3-step procedure: 1) Public bodies are asked to provide the prices of a given set of products purchased through and/or outside of Consip FCs (pconsip and pno-consip respectively); 2) The monetary value of products features which are specific to purchases made either through or outside of Consip FCs ( consip and no-consip) is evaluated; 3) The reported purchasing prices are cleaned of the value of product features which are specific to Consip or non-Consip purchasing contracts, that is: consip = pconsip consip and no-consip = pconsip no-consip consip & no-consip are prices of comparable products purchased through and outside of Consip s FCs respectively 5 Classification: Consip public

  6. The savings estimation methodology by the Italian Institute of Statistics (ISTAT) (2/2) Step 2. Estimate the value of realized savings from purchasing through Consip s FCs Savings are obtained as the percentage difference between the prices of comparable products purchased under and outside Consip contracts, that is, by computing 1- consip / no-consip 6 Classification: Consip public

  7. The Methodology in a simple picture Results Distributing the Survey to collect information on the level and composition of public expenditure on a defined set of products Non-response bias Relevance of the results: the higher the non-response rate the lower the informative power of the analysis Estimation Process Average prices of comparable products purchased through and outside of Consip s FCs Organizing the Dataset to create the variables to be used in the regression estimates Regression Estimates to relate purchasing prices to products characetristics Robustness Check Response rate Estimated savings = % Difference between the estimated prices of comparable products purchased through and outside of Consip s FCs 7 Classification: Consip public

  8. The 2012 Survey Distribution of the questionnaire A sample of 1.216 Central and Local Public bodies were asked to participate in an informative survey which aimed at collecting detailed information on the level and composition of public expenditure with respect to the following set of products, among which: office furnitures, car rentals and car purchases, meal vouchers, fuel, paper reams, gas, photocopiers rentals, PCs, telephone and data networks, servers, lighting services, Microsoft Office software, laser printers, mobile and landline telephone services Level of participation The 2012 survey edition was characterized by a satisfying response rate of over 30% Potential limitations A low response rate can give rise to sampling bias if the nonresponse is unequal among the participants regarding observed or unobserved characteristics 8 Classification: Consip public

  9. The estimation process Organizing the Dataset The collected data were elaborated and organized in order to: create homogeneous variables describing products characteristics across different public bodies; construct clusters of public bodies according to their geographical and institutional characteristics; create time-dimensional variables on the basis of invoice dates to account for possible price fluctuations of typically seasonal products (e.g., gas); identify whether or not products/service had been purchased through Consip s FCs Regression estimates The impact of products-specific features on prices was estimated so as to derive purchasing prices of comparable products bought through and outside of Consip FCs; Robustness check The preferred specification model is finally selected according to standard goodness of fit indicators 9 Classification: Consip public

  10. Regression Estimates: Model Specification and Selection The estimated models take the following form: = + + + + + ln( p ) X X ... nX 0 1 1 2 2 n where: p is the purchasing price of each product as reported by the administration; Xz represents the set of each product s characteristics which are thought to affect its purchasing price, with z=1, ,n; bzis the monetized value of each product s characteristics, with consip and no-consipbeing the monetary value of product features which are specific to purchases either under and outside Consip s FCs, respectively; is a residual component, including the influence of unobserved factors on purchasing prices Prices of comparable products purchased through and outside of Consip s FCs contracts are obtained as the difference between the purchasing price p and the value of those features which are specific to purchases either through or outside of Consip s FCs ( consip and no-consip): consip =pconsip consip no-consip = pconsip no-consip 10 Classification: Consip public

  11. Estimated Savings Estimated savings from purchasing under Consip contracts are computed as the percentage difference between the prices of comparable products purchased through and outside of Consip s FCs by type of purchasing body within each geographical area: Consip Contract Estimated savings Type of Administration Area YES NO DIFFERENCE % All Local Bodies Central Bodies North-West (NW) North-East (NE) Center (C) South (S) consip = S 1 consip no-consip no consip 11 Classification: Consip public

  12. Inclusion of SMEs: The Italian Governments e-Marketplace (the MePA) The MePA was launched in 2003: - to promote electronic purchasing (consistent with EU directive) - to streamline purchasing processes - to facilitate SMEs access to low-value procurement market - since July 1st2007 compulsory for central bodies (below EU threshold) Onboarding of the supply side is of paramount importance since it affects: - the variety of supplies (and thus the level of demand) - the level of competition in the long run Identifying the most relevant factors affecting suppliers success is above all instrumental to tailor marketing strategies towards the supply side 12 Classification: Consip public

  13. (Main) Performance indicator for the MePA Policy relevant question Explaining the degree of success of micro, small, medium (and large) firms on the Italian public e-marketplace How effective is e-procurement in opening up public procurement market? 13 Classification: Consip public

  14. Purchasing tools on the MePA Public bodies (PBs) can use 2 different purchasing tools: The Direct Purchase (DP) allows PBs to select goods and services from e- catalogues and buy at the posted price (click-and-buy purchase) The Request for Quotation (RFQ) allows PBs to select a contractor through an on-line simplified price/quality competition among those firms invited to submit a tender 14 Classification: Consip public

  15. Descriptive statistics of DPs in the 2005-2010 sample Distribution of the number and mean value of DPs ( ) per firm s size 2,000 59.7 60 1846.33 1753.28 1,500 DP values ( average) 1316.72 40 1151.76 32.93 Percent 1,000 20 500 5.936 1.429 0 0 0 micro small small medium large micro small medium large firms' size firms' size 15 Classification: Consip public

  16. The Econometric Model (1/2) Ordered Logistic Models (OLM) approach: Appropriate since our dependent variable is a categorical one. The value per each firm s class: 1. 2. 3. 4. Micro firms: Small firms: Medium firms: Large Firms: Y=1 Y=2 Y=3 Y=4 + + exp( + ) X j i j = ( ) for J = 1, 2, 3, M-1 P Y J i 1 {exp( )} X j i j Where M stands for the size of the firm (1 = micro, 2 = small, 3 = medium, 4 = large), X is the vector of explanatory variables, and are the estimated coefficients 16 Classification: Consip public

  17. The Econometric Model (2/2) Value of the contract Variety of the catalogues (posted by suppliers) Main explanatory variables Distance effect Notice Type (ICT and non - ICT) Nature of the public body (central and local) 17 Classification: Consip public

  18. Main Findings (1/2) Higher contract value Higher variety catalogues Higher prob larger firms ICT notice Local public authorities Non-ICT notice Higher prob smaller firms Central public authorities 18 Classification: Consip public

  19. Main Findings (2/2) Low contract value Higher prob smaller firms Higher distance High contract value Higher prob larger firms Lower distance Moral hazard (driven by anonimity?) Geography does (seem to) matter! 19 Classification: Consip public

  20. Probabilities of DPs from classes of suppliers for ICT and the Centre 20 Classification: Consip public

  21. Estimated probabilities for non-ICT notices and all geographical locations but the Centre 21 Classification: Consip public

  22. Main policy implications + Distance effect Contract value effect Reputation mechanisms for reducing moral hazard/anonimity 1 Onboarding of SMEs requires consideration of several dimensions 2 22 Classification: Consip public

  23. Evaluating the impact on a Central Purchasing Body (CPB) on the market The impact of a CPB s action on the market structure and dynamic can be analyzed through indicators relying on data based on the CPB s procurement initiatives only, typically, Framework Contracts orAgreements (FCs or FAs) Such indicators should be computed and evaluated on the single market/category basis and used: to compare different markets among each other to analyze the dynamics of single markets 23 Classification: Consip public

  24. Some Indicators (1/2) Participation N. of bids / N. of lots N. of bidding firms / N. of lots (takes into account temporary groups of firms) Concentration Turnover of the top 3 suppliers in all the editions of the FA / Total turnover of all the editions of the FA Participation patterns Entry index: N. new firms bidding at time t / N. bidders at time t Exit index: N. firms bidding at time t-1 but NOT at time t / N. firms bidding at time t-1 24 Classification: Consip public

  25. Some Indicators (1/2) Example 45 12% 1 78 21% Health Sector 2 N. Bids per Lot 78 21% 3 IT equipement Top 3 suppliers 61 17% 4 Top 5 suppliers TLC 43 12% 5 35 10% Services to real estate 6 Other suppliers Health Sector 16 4% Real Estate 7 0% 50% 100% 7 2% Utilities % of total turnover of FAs 8 TLC 3 1% 9 IT 1 0,3% 10 Absolute figures indicate the absolute number of lots Evaluate the degree of concentration of the managed turnover in different markets or category groups Evaluate the degree of participation in different markets or category groups 25 Classification: Consip public

  26. Squeezing market Dynamic market 80% Energy service hospitals (2) Exit index vs. Entry index 70% mean values over (n) editions of each framework contract 60% Printers (4) PC laptop (5) Exit index 50% Server (4) Gas (2) Facility management (2) Furniture (2) Vehicles (3) 40% Lunch coupons (2) Raw food (3) 30% PC desktop (4) Fuel (3) Expanding market Static market 20% Electricity (5) 10% 0% 10% 20% 30% 40% Entry index 50% 60% 70% 80% 90% Entry index: N. new firms bidding at time t / N. bidders at time t Exit index: N. firms bidding at time t-1 but NOT at time t / N. firms bidding at time t-1 26 Classification: Consip public

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