Ottawa Group

International Working Group On Price Indices



Meeting: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 15 | 16

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Sixteenth Meeting - Rio de Janeiro, Brazil 08-10 May 2019

Report from Ottawa Group Meeting Rio de Janeiro 2019 (1,676KB)

The sixteenth meeting, sessions summary

The papers submitted for discussion at the meeting have been grouped into six topics and ten sessions, as outlined below:
Please note once the papers are available they will be attached to the respective sessions, in the meantime an overview of the papers can be found in the above Report from the Ottawa group meeting - Rio de Janeiro 2019.

Session 1: New data sources to compile price indices (I)
Chairperson: Patrick Kelly

Jens Mehrhoff: Towards a new paradigm for scanner data price indices: applying big data techniques to big data
Abstract | Paper | Presentation

Jan de Haan, Jacco Daalmans: Scanner Data in the CPI: The Imputation CCDI Index Revisited
Abstract | Paper | Presentation

Anna Bobel, Jacek Białek: Comparison of Price Index Methods for CPI Measurement using Scanner Data
Abstract | Paper | Presentation

Session 2: Pricing seasonal products
Chairperson: Roberto Olinto

Patrick Kelly, Matlhatsi Ratswana: Missing in action: testing alternative methods for imputations and seasonal items
Abstract | Paper | Presentation

Corinne Becker Vermeulen: Pricing seasonal products: the imputation techniques
Abstract | Paper | Presentation

Kristiina Nieminen, Yrjö Vartia, Antti Suoperä, Satu Montonen: Chain Error as a Function of Seasonal Variation
Abstract | Paper | Presentation


Session 3: New data sources to compile price indices (II)
Chairperson: Jens Mehrhoff

Rafael Posse, Jorge Alberto Moreno: Use of Big Data in modern markets coexisting with traditional markets data
Abstract | Paper | Presentation

Andrew Tomadini, Michael Holt: Experimental clothing indexes using Australian web scraped data
Abstract | Paper | Presentation


Session 4: Other topics (I)
Chairperson: Jan de Haan

Ludwig von Auer: The Nature of Chain Drift: Implications for Scanner Data Price Indices
Abstract | Paper | Presentation

Tsutomu Watanabe, Kozo Ueda, Kota Watanabe: Storable Goods, Chain Drifts, and the Cost of Living Index: New Methodology and Application to Japanese Data
Abstract | Paper | Presentation

Antonio G. Chessa: A comparison of index extension methods for multilateral methods
Abstract | Paper | Presentation


Session 5: New data sources to compile price indices (III)
Chairperson: Jens Mehrhoff

Edward Rowland: Machine learning for classification with big data in price statistics production pipelines
Abstract | Paper | Presentation

Olivia Ståhl, Peter Nilsson: Towards a roadmap for Efficient use of Electronic Transaction Data in the Swedish CPI
Abstract | Paper | Presentation

Manuel I. Bertolotto: Online Price Index with Product Replacement: The Closest Match Approach
Abstract | Paper | Presentation

Session 6: Compiling housing price indices
Chairperson: David Fenwick

Rósmundur Guðnason: Owner occupied housing in the Icelandic CPI, a survey of simple user cost for a quarter of a century
Abstract | Paper | Presentation

Paulo Picchetti: Residential Price Indexes using different sources of information
Abstract | Paper | Presentation

Kate Burnett-Isaacs, Erwin Diewert, Ning Huang,: Developing Land and Structure Price Indexes for Ottawa Condominium Apartments
Abstract | Paper | Presentation


Session 7: Index number formulae
Chairperson: Ludwig von Auer

Ragnhild Nygaard, Li-Chun Zhang, Ingvild Johansen: Evaluating unit-value price indices in a dynamic item universe
Abstract | Paper | Presentation

Claude Lamboray: Elementary aggregation: A not so elementary story!
Abstract | Paper | Presentation


Session 8: Quality adjustment
Chairperson: Brian Graf

Jean-Denis Zafar, Mathilde Poulhes: Webscraping prices to estimate hedonic models and extensions to other predictive methods
Abstract | Paper | Presentation

Elisabeth Wieland: Measuring price dynamics of package holidays with transaction data
Abstract | Paper | Presentation

Session 9: New data sources to compile price indices (IV)
Chairperson: Antonio Chessa

Tanya Flower: Using alternative data sources in consumer prices, UK
Abstract | Paper | Presentation

Lincoln Teixeira da Silva, Ingrid Luquett de Oliveira, Vladimir G. Miranda, Tiago Dantas: Studies of new data sources and techniques to improve CPI compilation in Brazil
Abstract | Paper | Presentation

Can Tongur: Challenging the CES assumption with scanner data – pitfalls of the fixed basket
Abstract | Paper | Presentation


Session 10: Other topics (II)
Chairperson: Paulo Picchetti

Doron Sayag, Danny Pfeffermann, Dan Benhur: Reducing Revisions in House Price Index with Nowcasting Model
Abstract | Paper | Presentation

Brian Graf, Margarida Martins: Update of the CPI Manual
Abstract | Presentation



Poster Session (I)
Wednesday, 08 May
New data sources to compile price indices

Tanya Flower: Task Team on Scanner Data
Abstract | Poster

Hideaki Nakamura: Improving the accuracy of the CPI by using big data in Japan
Abstract | Poster

Federico Polidoro: Combining data coming from scanner, traditional CPI data collection and other sources to compile sub-national PPPs in Italy
Abstract | Poster

Ken Van Loon: Redefining what products are in the context of scanner data and web scraping, experiences from Belgium
Abstract | Paper

Merav Oren-Yiftach: Automatic data collection in the Israeli CPI: measuring the sharing economy in the sector of short term rentals and web scraping for flights and hotels
Abstract | Poster


Compiling housing price indices

Andrew Tomadini, Ruvani Ratnayake: Opportunities and challenges: Leveraging alternate data sources to compile the CPI Rents Index
Abstract | Paper

Kate Burnett-Isaacs, Steve Martin: Unifying Approach to Statistics Canada´s Residential Property Price Index
Abstract | Poster

Luiz Andrés Paixão: Hedonic price methods and real estate price index: an explanatory study for apartments market in Belo Horizonte, Brazil from 2004 to 2015
Abstract | Paper | Poster

Fred Barzyc, Roobina Keshishbanoosy: A new hedonic rent index methodology for Canada
Abstract | Paper | Poster


Price statistics that meet multiple user needs

Majed Skaini: Synergies between CPIs and PPPs and integration of survey activities’
Abstract | Paper


Room documents
Vladimir G. Miranda, Pedro Kislanov da Costa, Rodrigo Ventura: Consumer price indices at IBGE: 40 years and counting
Abstract | Paper | Poster


Other topics
Jan Walschots: Changing baskets in the CPI
Abstract | Paper | Poster

Rodrigo Ventura: Challenges of Using National Accounts for a More Frequent Update of the Brazilian CPI Weights
Abstract | Paper | Poster


Poster Session (II)
Friday, 10 May
New data sources to compile price indices

Paul Pascoe, Fiona Smillie: Creating a Food Price Index Using Web Scraped Data
Abstract | Paper | Poster

Sara Heledd Thomas: The use of approximate expenditure weights for web scraped data in consumer price indices
Abstract | Paper | Poster

Jens Mehrhoff: Prompting the use of a publically available scanner data set in price index research and for capacity building
Abstract | Paper

Martti Korhonen: New Data Sources for Rental and Housing Price Statistics in Finland
Poster


Compiling housing price indices
Andrew Tomadini: Experimental clothing indexes using Australian web scraped data
Poster

Brian Graf, Vanda Guerreiro: Residential property price index PRACTICAL COMPILATION GUIDE
Abstract | Poster

Paulo Fernando Mahaz Simões: A Model Based Approach to Produce Commercial and Residential Property Price indices
Abstract | Paper | Poster

Kate Burnett-Isaacs: Resale Residential Property Price Index (rRPPI) Methodology
Abstract | Paper | Poster


Quality adjustment
Bernhard Goldhammer, Raffaella Traverso, Lukas Henkel: Bias related to the bridged-overlap method
Abstract | Poster

Tanya Flower, Christopher Payne: Quality Adjustment Review of UK Consumer Price Statistics
Abstract | Poster


Index number formulae
Can Tongur: A recursive Jevons formulation
Abstract | Poster


Other topics
Mone Imamura, Taroh Nakayama: “Services in the Japanese CPI – Some Examples”
Abstract | Poster

Plinio Leal dos Santos, Vladimir G. Miranda, Ivan Meirinho de Mello: Outlier detection for the National System of Costs Survey and Indices of Civil Construction (Sinapi) at The Brazilian Institute of Geography and Statistics (IBGE)
Abstract | Paper | Poster

Antonio G. Chessa: MARS: A method for defining products and linking barcodes of item relaunches
Abstract | Paper | Poster

Gustavo Vitti Leite, Lincoln Teixeira da Silva, Vladimir G. Miranda, Marcelo Rubens do Amaral, Plinio Leal dos Santos: Measurement of two services components of the basket of the Brazilian Consumer Price Index (CPI) using the Continuous National Household Sample Survey (PNADC) as data source
Abstract | Paper | Poster