“…This O-oriented plant capacity has been applied in a series of empirical applications mainly in health care (e.g., Kerr, Glass, McCallion, and McKillop (1999)) and in fisheries (e.g., Vestergaard, Squires, and Kirkley (2003)). We are also aware of one empirical application in farming (e.g., Liu, Balezentis, Song, and Yang (2019)), and another macroeconomic application on trade barriers (e.g., Badau (2015)).…”