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Money does indeed buy happiness, and here is why

Money really can buy happiness when spending fits our personality, according to a study.
By Ben Lobel on Apr 6th, 2016   @freelotteriesuk

People who spend more money on purchases that match their personality are happier, finds research of 77,000 UK bank spending transactions.

The study, authored by academics at Cambridge Judge Business School and the Psychology Department of Cambridge University, finds that matching spending with personality is more important for individuals’ happiness 'than the effect of individuals' total income or their total spending'.

The study was conducted in collaboration with a UK-based multinational bank. Customers were asked whether they would complete a standard personality and happiness questionnaire, and to consent to their responses being matched anonymously for research purposes with their bank transaction data.

The final study is based on 76,863 transactions of 625 participants – none of whose names is known to the authors. The study whittled down 112 spending categories automatically grouped by the bank into 59 categories that had at least 500 transactions over a six-month period.

The study matched spending categories on the widely recognised 'Big Five' personality traits – openness to experience (artistic versus traditional), conscientiousness (self-controlled vs easygoing), extraversion (outgoing vs reserved), agreeableness (compassionate vs competitive), and neuroticism (prone to stress vs stable).

For example, 'eating out in pubs' was rated as an extroverted and low conscientiousness (impulsive) spending category, whereas 'charities' and 'pets' were rated as agreeable spending categories.

The researchers then compared the participants’ actual purchases to their personalities using this scale, and found that people generally spent more money on products that match their personality. For example, a highly extroverted person spent approximately £52 more each year on 'pub nights' than an introverted person. Similarly, a highly conscientiousness person spent £124 more annually on 'health and fitness' than a person low in conscientiousness.

The study was authored by Sandra Matz, a PhD candidate in the Psychology Department of the University of Cambridge; Joe Gladstone, a Research Associate at Cambridge Judge Business School; and David Stillwell, University Lecturer in Big Data Analytics & Quantitative Social Science at Cambridge Judge Business School.

Joe Gladstone says, 'Historically, studies had found a weak relationship between money and overall wellbeing. Our study breaks new ground by mining actual bank-transaction data and demonstrating that spending can increase our happiness when it is spent on goods and services that fit our personalities and so meet our psychological needs.'

The researchers believe the findings hold widespread implications, including for Internet merchants using search-based recommendation engines. Companies can use this information to recommend products and services that don’t just increase clicks, but will actually improve the wellbeing of their customers – allowing companies to forge better relationships with customers based on what makes them happier.

The researchers also backed up their findings by running a second experiment, where they gave people a voucher to spend in either a bookshop or at a bar. Extroverts who were forced to spend at a bar were happier than introverts forced to spend at a bar, while introverts forced to spend at a bookshop were happier than extroverts forced to spend at a bookshop. This follow-up experiment overcomes the limitations of correlational data by demonstrating that spending money on things that match a person’s personality can cause an increase in happiness.

'Our findings suggest that spending money on products that help us express who we are as individuals could turn out to be as important to our well-being as finding the right job, the right neighbourhood or even the right friends and partners,' says Matz. 'By developing a more nuanced understanding of the links between spending and happiness, we hope to be able to provide more personalised advice on how to find happiness through the little consumption choices we make every day.'