Economics can be used to study almost anything, including popular music. For example, the late Alan Krueger analyzed the music industry, examining live concert revenue, copyright protection, and streaming services in the book Rockonomics. Similarly, economics can offer insights about heavy metal specifically, a type of rock music characterized by loud distorted guitars, intense rhythms, and powerful vocal styles.

There are many schools of thought in economics. Each rallies around one or more different theories about how the world works, and builds models to support those theories and explain the economy. These schools include the (neo)classical, (neo)Keynesian, monetarist, and Chicago schools. Readers may have heard about the Austrian school of thought as well. 

In 2019, the University of Bristol became the first UK university to formally declare a climate emergency. In the following year, a further 36 institutions in the UK followed suit. Beyond their own climate research and agendas to achieve carbon neutrality, universities play a key role in educating their students and the public about the climate crisis.