| The women's later appraisal of the group's value was proportional to the effort that had been demanded of them before being allowed into the group | Both groups then took part in bidding over these objects |
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| For example, "people may see the improvements they have made to their homes—such as the brick walkways they laid by hand—as increasing the value of the house far more than buyers, who see only a shoddily-built walkway | Conclusions by Norton et al |
The effect is also related to the "" syndrome, where managers disregard good ideas developed elsewhere, in favor of possibly inferior internally developed ideas.
| הקטלוג השנה כולל טיפים לעיצוב הבית וכן דוגמאות לשישה בתים: בית מינימליסטי , בית , דירה שכורה של בני זוג , בית של , דירת סטודיו ובית המשמש | In addition, the researchers pointed out the popularity of "haycations," whereby city people pay to do farmers' work for them |
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| The name refers to manufacturer and furniture retailer , which sells many | A 1959 study by Aronson and Mills that has been described as a "classic" produced results that seem to reflect either the IKEA effect or a closely related phenomenon |
Norton and his colleagues noted that, while not yet named or scientifically established, it had been recognized by marketers for a long time.
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