To keep human resource consumption within planetary boundaries, individual consumption levels need to drop. We therefore investigated whether online communications interventions, especially on social media, can foster sufficiency in the clothing domain. In two experiments, consumption reduction and prolonging the lifetime of clothes were promoted. In Study 1, we conducted an online field intervention. All participants, both in the experimental and the control groups, reduced their clothing consumption. Hence, the intervention itself did not change clothing consumption levels. Study 2 was a laboratory experiment with sufficiency-promoting social media communication. Sufficiency-promoting communication led to more sufficiency behaviour compared to neutral and consumption-promoting communication. This effect was mediated by a lower desire to acquire new clothes (aspiration level). Peer endorsement of the communication by other social media users did not strengthen the communication's effect. However, the attitude towards the sender and the communication was more positive in the sufficiency-promoting communication than under the other two conditions. Although the field intervention was not effective, social media posts could increase sufficiency behaviour in the short-term. To test long-term effects, further experimental studies are needed.

为了使人力资源消耗保持在全球范围内，个人消耗水平需要下降。因此，我们调查了在线交流干预措施，尤其是在社交媒体上的干预措施，是否可以促进服装领域的自给自足。在两个实验中，促进了减少消耗和延长衣服寿命。在研究1中，我们进行了在线现场干预。实验组和对照组的所有参与者都减少了衣服的消耗。因此，干预本身并没有改变服装的消费水平。研究2是一项实验室实验，具有充分促进社交媒体沟通的能力。与中立和促进消费的交流相比，促进自我的交流导致更多的自我满足行为。这种效果是由较低的购买新衣服的愿望（期望水平）介导的。其他社交媒体用户对通信的同行认可并没有增强通信的效果。但是，在充分促进沟通方面，对发送者和沟通的态度比在其他两种情况下更为积极。尽管现场干预效果不佳，但社交媒体帖子可能会在短期内增加自给自足的行为。为了测试长期效果，需要进一步的实验研究。在充分促进沟通方面，对发送者和沟通的态度比在其他两种情况下更为积极。尽管现场干预效果不佳，但社交媒体帖子可能会在短期内增加自给自足的行为。为了测试长期效果，需要进一步的实验研究。在充分促进沟通方面，对发送者和沟通的态度比在其他两种情况下更为积极。尽管现场干预效果不佳，但社交媒体帖子可能会在短期内增加自给自足的行为。为了测试长期效果，需要进一步的实验研究。