In the study "From Commodity Fetishism to Commodity Narcissism" (2012) the investigators applied the Marxist theory of commodity fetishism to psychologically analyse the economic behaviour (buying and selling) of the contemporary consumer. With the concept of commodity narcissism, the psychologists Stephen Dunne and Robert Cluley proposed that consumers who claim to be ethically concerned about the manufacturing origin of commodities, nonetheless behaved as if ignorant of the exploitative labour conditions under which the workers produced the goods and services, bought by the "concerned consumer"; that, within the culture of consumerism, narcissistic men and women have established shopping (economic consumption) as a socially acceptable way to express aggression. Researchers find no evidence that a greater manufacturing base can spur economic growth, while improving government effectiveness and regulation quality are more promising for facilitating economic growth.