Consumer psychology meets the psychology of attraction: how female fertility influences desire for variety in products. And look but don’t touch: observing male behaviour in lingerie stores.

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More chocolate is always better than less chocolate. But new research shows that women are more interested in getting a good variety of chocolate (and other consumer products) when they're most fertile.

The articles covered in the show:

Moule, K. R., & Fisher, M. (2014). You can look but you cannot touch: Male behaviors observed in lingerie stores. Human Ethology Bulletin, 29(4), 4-17. Read paper

Durante, K. M., & Rae Arsena, A. (in press). Playing the field: The effect of fertility on women’s desire for variety. Journal of Consumer Research. Read summary

This month we discover which personality traits make a person lucky in love. Also, how men and women respond differently when their partner is complimented, and why single men crave iPhones.

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What kind of man is desperate to buy an iPhone? New research suggests it's not only the kind of man who has the time and inclination to make himself a smartphone hat.

The articles covered in the show:

Hennighausen, C., & Schwab, F. (2014). Relationship status moderates men's conspicuous consumption of smartphones. Letters on Evolutionary Behavioral Science, 5(2), 13-16. Read summary

Berg, V., Lummaa, V., Lahdenperä, M., Rotkirch, A., & Jokela, M. (in press). Personality and long-term reproductive success measured by the number of grandchildren. Evolution and Human Behavior. Read summary

Brown, C. M., Daniels, E. R., Lustgraaf, C. J. N., & Sacco, D. F. (2014). Verbal compliments as a differential source of mate poaching threat for men and women. Evolutionary Psychology, 12(4), 736-756. Read paper