Sofia Villas-Boas

UC, Berkeley
Department of Agricultural & Resource Economics
310 Giannini Hall
CA 94720-3310

E-Mail: EmailAddress: hidden: you can email any NBER-related person as first underscore last at nber dot org

NBER Working Papers and Publications

August 2017Willingness to Pay for Low Water Footprint Foods during Drought
with Hannah Krovetz, Rebecca Taylor
in Agricultural Productivity and Producer Behavior, Wolfram Schlenker, editor
June 2017Willingness to Pay for Low Water Footprint Food Choices During Drought
with Hannah Krovetz, Rebecca Taylor: w23495
In the context of recent California drought years, we investigate empirically whether consumers are willing to pay for more efficient water usage in the production of four California agricultural products. We implement an internet survey choice experiment for avocados, almonds, lettuce, and tomatoes to elicit consumer valuation for water efficiency via revealed choices. We estimate a model of consumer choices where a product is defined as a bundle of three attributes: price, production method (conventional or organic), and water usage (average or efficient). Varying the attribute space presented to consumers in the experimental choice design gives us the data variation to estimate a discrete choice model—both conditional logit specifications and random coefficient mixed logit specification...
November 2007Revisiting the Income Effect: Gasoline Prices and Grocery Purchases
with Dora Gicheva, Justine Hastings: w13614
This paper examines the importance of income effects in purchase decisions for every-day products by analyzing the effect of gasoline prices on grocery expenditures. Using detailed scanner data from a large grocery chain as well as data from the Consumer Expenditure Survey (CES), we show that consumers re-allocate their expenditures across and within food-consumption categories in order to offset necessary increases in gasoline expenditures when gasoline prices rise. We show that gasoline expenditures rise one-for-one with gasoline prices, consumers substitute away from food-away-from-home and towards groceries in order to partially offset their increased expenditures on gasoline, and that within grocery category, consumers substitute away from regular shelf-price products and towards prom...
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