The intersection between economics and psychology is huge, especially in areas of reinforcement, responding to incentives, learning theory, etc. Both disciplines rely heavily on the concept that people respond to incentives.
Psychologists have known for decades that animals also respond to incentives. Witness the early work with dogs [Pavlov] and rats [Skinner, Guthrie, et al.]
But this story about pandas seems almost more like economics [ht Jack]:
A giant Chinese panda has been accused of faking a pregnancy in a cunning bid for free buns.
Ai Hin seemed to display all the signs of an expectant mother, including moving less and initially having a smaller appetite....
However, it seems that Ai Hin had everyone duped and was never pregnant at all.
It seems the panda had learnt that her pregnancy news would see her rewarded with plenty of extra buns.
Wu Kongju, a panda expert told China's state news agency Xinhua that giant pandas are moved into a single room with air conditioning when pregnant.
"They also receive more buns, fruits and bamboo, so some clever pandas have used this to their advantage to improve their quality of life."