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Last Published January 05, 2026 07:47 AM June 17, 2026 04:12 AM
Experimental Design (Public) We study how different types of information can influence individuals' inflation expectations in a randomised controlled trial. We first elicit individuals' inflation expectations and expectations about the prices individuals pay for the goods and services they purchase. We then provide different types of information about inflation and prices. Finally, we study how these types of information affect individuals' beliefs, relative to those in control groups that receive no information or irrelevant information. The experiment will be done via an online survey for a convenience panel of the partner organisation, with quotas to maintain representativity of the population living in Spain, ages 25 to 64 years old. We study how different types of information can influence individuals' inflation expectations in a randomised controlled trial. We first elicit individuals' inflation expectations and expectations about the prices individuals pay for the goods and services they purchase. We then provide different types of information about inflation and prices. Finally, we study how these types of information affect individuals' beliefs, relative to those in control groups that receive no information or irrelevant information. The experiment will be done via an online survey for a convenience panel of the partner organisation, with quotas to maintain representativity of the population living in Spain, ages 25 to 64 years old. We will also conduct a similar version of the experiment in Argentina (but with a shorter questionnaire)
Planned Number of Observations At least 7200 individuals At least 7200 individuals in Spain, and at least 4,400 individuals in Argentina
Sample size (or number of clusters) by treatment arms At least 1800 individuals per treatment group At least 1800 individuals per treatment group in Spain, and 1100 in Argentina
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Irbs

Field Before After
IRB Name The University of Manchester
IRB Approval Date June 04, 2026
IRB Approval Number 2026-24012-47958
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