Hypotheses 5 and 6 cannot be tested separately because an increase in the number of people in the breakfast area over a certain threshold always implies automatically that the hotel sets up a third buffet station. This third buffet station has the same food items but increases the overall amount of food in the breakfast area and reduces the distances guests need to walk to get to the buffet. Hypothesis 5 postulates that perceived abundance of food as a consequence of the third buffet leads to more food waste. Hypothesis 6 postulates that the increased anonymity caused by more people being present in the room reduces the effects of social norms and thus increases plate waste. The regression analysis results support these two hypotheses. The number of buffets set up is highly associated with more food waste. The third buffet is set up as soon as there are 800 guests in the hotel. In fact, as can be seen in Figure 1, increasing from two to three buffet stations in the breakfast restaurant area has a substantial effect on food waste. Within the same number of buffets, however, the number of guests is associated with decreased food waste. If, for example, two buffets are set up and the number of guests using these two buffets increases, the perception of food abundance decreases (less food per person at the buffet) and, with it, food waste. Once the third buffet is set up, the available amount of food per person suddenly increases rapidly, giving the impression of significant food abundance. In that situation, food waste increases quite dramatically.