scholarly journals Price Measurement Using Scanner Data: Time‐Product Dummy Versus Time Dummy Hedonic Indexes

Author(s):  
Jan Haan ◽  
Rens Hendriks ◽  
Michael Scholz
2009 ◽  
Vol 23 (2) ◽  
pp. 77-97 ◽  
Author(s):  
Christian Broda ◽  
Ephraim Leibtag ◽  
David E Weinstein

In this paper, we revisit two pieces of conventional wisdom in the current debate about poverty, paying close attention to the price data underlying these findings: that the poor pay more than households of higher income for the goods and services they purchase; and that poverty rates, at least as measured by the U.S. Census, have remained essentially flat since the late 1960s, raising questions about the success of the policies implemented to reduce poverty. By examining scanner data on thousands of household purchases, we find that the poor pay less—not more—for the goods they purchase. And by extending the advances on price measurement in the recent decade back to the 1970s, we find that current poverty rates are less than half of the official numbers.


Author(s):  
Paul Stoneman ◽  
Eleonora Bartoloni ◽  
Maurizio Baussola

This chapter addresses how innovation may affect price measurement—a key issue for the accuracy of measures of principal economic indicators and a long-discussed one. Two main changes related to product innovation are important in this context: new goods (which are often cheaper) are driving old goods out of the market; and new products often offer improved quality. The literature suggests that a failure to properly account for these has added 0.8 percentage points per year to the measured Consumer Price Index in the United States. Quality adjustment approaches in all OECD countries have converged towards general methodological guidelines that represent a common knowledge base. The hedonic methodology is applied in a significant number of countries and for specific categories of goods, in particular electronic products. The use of this approach is exemplified and the impact on price indexes evaluated.


Author(s):  
Paul Stoneman ◽  
Eleonora Bartoloni ◽  
Maurizio Baussola

The prime objective of this book is the use microeconomic analysis to guide and provide insight into the generation and adoption of new products. Taking an approach that uses minimal formal mathematics, the volume initially addresses questions of definitions, sources, and extent of product innovation, differentiating between goods and services; hard and soft innovations; horizontal and vertical innovations; original, new to market, and new to firm innovations. The sources of product innovations (e.g. R&D, design, and creativity) are explored empirically, and the extent of such innovations is then pursued using survey and other data. Three chapters are devoted to the theoretical analysis of the demand for and supply of new products and to the determination of firms’ decisions to undertake product innovation. Later chapters encompass empirical evidence on the determination of the extent of product innovation, the diffusion of such innovation, the impact of product innovation on firm performance, price measurement, and welfare, while the final chapter addresses policy issues.


2020 ◽  
Vol 17 (12) ◽  
pp. 3012-3023
Author(s):  
Carlos Magno Moreira de Oliveira ◽  
Márcio Rocha Francelino ◽  
Bruno Araujo Furtado de Mendonça ◽  
Isabela Queiroz Ramos
Keyword(s):  

2021 ◽  
pp. 1-26
Author(s):  
Sigrid Denver ◽  
Tove Christensen ◽  
Jonas Nordström

Abstract Objective: The objective is to analyze Danish consumers’ attitudes to buying food with reduced salt content. Design: The study is based on a comprehensive store intervention that included 114 stores belonging to the same supermarket chain. Three different salt claims were tested for eight weeks on six test products within the categories bread, cornflakes and frozen pizzas. Scanner data were supplemented with 134 brief interviews with consumers in nine selected stores. Setting: Stores spread across Denmark. Participants: Consumers who buy food in the stores. Results: Statistical regression analyses of the scanner data indicated that none of the three claims significantly affected demand for any of the test products. The interviews confirmed that many consumers were more focused on other elements of the official dietary advice than reduced salt consumption, such as eating plenty of vegetables, choosing products with whole grains and reducing their intake of sugar and fat. Conclusions: Overall, both the scanner data and the interviews pointed in the same direction, toward the conclusion that salt content is often a secondary factor when Danish consumers make dietary choices.


1994 ◽  
Vol 23 (2) ◽  
pp. 125-139 ◽  
Author(s):  
Ronald W. Cotterill

This paper reviews prior research by agricultural economists on the demand for food products using scanner data. Thereafter, a differentiated product's oligopoly model with Bertrand price competition is developed and used to specify brand level demand and oligopoly price reaction equations. The model has sufficient detail to estimate brand level price elasticities and price response elasticities which in turn can be used to estimate three indices of market power. The first index estimated is the familiar Rothschild Index. The paper develops estimates two new indexes, the observed index and the Chamberlin quotient for tacit collusion. It concludes with comments on how the proposed method for the measurement of market power in a differentiated oligopoly can be improved.


1979 ◽  
Vol 18 (22) ◽  
pp. 3715 ◽  
Author(s):  
Hongsuk H. Kim ◽  
Charles R. McClain ◽  
William D. Hart

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