**Main hypotheses** H1a (moral licensing effect): Participants in the green store condition will be less honest than participants in the control condition. This hypothesis follows from the definition of the moral licensing effect (see Mullen & Monin, 2016). H2 (effect of environmental attitude on cheating): Participants with higher level of environmental attitude will be more honest. This hypothesis follows from the fact that people with high levels of environmental attitude have higher values of honesty and humility (Hilbig, Zettler, Moshagen, & Heydasch, 2012), and they have higher tendency to engage in prosocial behavior (Kaiser & Byrka, 2011) and follow instructions in an experiment (Kaiser, Otto, & Schuler, 2015). H3a (moderating effect of environmental attitude on moral licensing): Dishonesty of participants in the green store condition relative to the control condition will increase with increasing level of environmental attitude. This hypothesis follows from our expectation that participants with a higher level of environmental attitude will perceive initial purchase of green products as relatively more moral than participants with low levels of environmental attitude, which should lead to comparatively larger licensing effect. H4 (moral cleansing effect): Participants in the conventional store condition will be more honest than participants in the control condition. This hypothesis follows from the expectation that participants will recognize consumption of conventional products as a relatively immoral activity and from expectation of subsequent moral cleansing effect (Zhong & Liljenquist, 2006; for related evidence, see Ho, Taber, Poe, & Bento, 2016). H5 (moderating effect of environmental attitude on moral cleansing): Relative honesty of participants in the conventional store condition as opposed to control condition will increase with increasing level of environmental attitude. This hypothesis follows from the fact that people with a higher level of environmental attitude have higher tendency to engage in green shopping (Joshi & Rahman, 2015) and therefore we expect them to be more likely to recognize purchase of conventional products as deviating from their moral norms, threatening thus their self-perception and triggering moral cleansing. **Alternative hypotheses** H1b (consistency of moral behavior): Participants in the green store condition will be more honest than participants in the control condition and in the conventional store condition. This hypothesis follows from a possible presence of the priming effect that has been observed when participants are exposed to green products in the store (Mazar & Zhong, 2010). H3b (moderating effect of environmental attitude on consistency): Relative honesty of participants in the green store condition in comparison to the control group will increase with an increasing level of environmental attitude. This hypothesis follows from the moral priming effect of exposure to green products (Mazar & Zhong, 2010) and from our expectation that people with a high level of environmental attitude who engage comparatively more in green consumption (Joshi & Rahman, 2015) may be better able to identify green products and/or more likely to perceive green consumption as moral. H6 (moral regulation effect): Participants in the green store condition will manifest different level of dishonesty than participants in the conventional store condition. (This is general and weaker hypothesis which potentially covers also H1a, H1b but also H4. This hypothesis is supported by observations made in majority of licensing studies, including study by Mazar and Zhong (2010) which do not use proper control group and therefore cannot disentangle different moral regulation process but only reveal some form of moral regulation processes.) H7 (moderating effect of environmental attitude on moral processes): Difference in dishonesty between participants in the green store and conventional store conditions will increase with increasing levels of environmental attitude. This is a general and weaker hypothesis which potentially covers also H3a, H3b and H5. This hypothesis is supported by the study by Hahnel et al. (2015), which found such moderating effect but due to the lack of control condition could not link it to specific moral process (e.g., licensing, cleansing, consistency). **Auxiliary hypotheses** H8 (effect of environmental attitude on error rate): Participants with higher levels of environmental attitude will manifest lower error rate in the dots task. (This hypothesis follows from the observations that people with higher level of environmental attitude have higher tendency to comply with instructions when participating in research and higher motivation to participate in a research (Kaiser et al., 2015), both supposedly due to their prosociality (Kaiser & Byrka, 2011). **Exploratory analysis** We will analyze perception of the purchased goods and affective state of participants at the time of choosing the products as possible mediators of the effect of the store on cheating. We expect that differences in perception of store conditions and differences in affective states related to purchase of green products (as opposed to conventional products) will be a function of environmental attitude and may explain why environmental attitude moderates moral processes. Specifically, we expect that people with high level of environmental attitude will perceive purchase they have made in the green store more positively and will manifest more positive affects than participants with low level of environmental attitude. Conversely, we also expect that participants with higher level of environmental attitude will perceive their purchase in the conventional store more negatively and will manifest more negative affects than participants with low level of environmental attitude.