Bergh, B. van den

product study outcome effect status participant motive preference people journal research psychology status motives prosocial orientation arm fl exion consumer version condition cooperation exposure behavior individualist strategy consumption approach choice business difference contraction cycle motivation exion personality nongreen reward value control altruism increase expansion value orientation result option interaction nongreen products stimulus equality decision shopping stimuli example sentiment uctuation other individual system motivational model measure order present-biased preferences actor erasmus univ rotterdam approach motivation mating theory action marketing business cycle process griskeviciu status products extension round conservation fi ndings processing consumer psychology purchase