Frogs and Opportunity Cost

From Healing Charm To Cautionary Tale

Greti Dinkova-Bruun | Medievalists | 22nd October 2025 | U

Pre-Enlightenment, frogs were both shunned and desired. Their Biblical association with plague and sin, as well as their slimy nature, made them something to avoid. But at the same time, they were thought to have healing properties. One fifth century remedy calls for a live frog to be placed on the patient's stomach so as to transfer the illness to the amphibian. In the 13C, frog bile could cure ear ache (1,100 words)

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Costs and Choices of Kiki’s Delivery Service

Byron Carson | Econlog | 10th September 2025

Studio Ghibli’s 1989 animated masterpiece is about a 13-year-old witch who survives on her own by running a broomstick-based delivery service. As she succeeds, she struggles to manage the workload and have leisure time. This is the perfect case study for those seeking a greater understanding of the economic concepts of cost and choice. Kiki wrestles continually with subjective opportunity costs (1,600 words)