a bad captain, and certainly an even worse general. One knows from experience." Similarly, Carl von Clausewitz (1780–1831) wrote that "there is nothing more common than to hear of men losing their energy on being raised to a higher position, to which they do not feel themselves equal." Spanish philosopher José Ortega y Gasset (1883–1955) virtually enunciated the Peter principle in 1910, "All public employees should be demoted to their immediately lower level, as they have been promoted until turning incompetent." A number of scholars have engaged in research interpreting the Peter principle and its effects. In 2000, Edward Lazear explored two possible explanations for the phenomenon. First is the idea that employees work harder to gain a promotion, and then slack off once it is achieved. The other is that it is a statistical process: workers who are promoted have passed a particular benchmark of productivity based on factors that cannot necessarily be replicated in their new role, leading to a Peter principle situation. Lazear concluded that the former explanation only occurs under particular compensation structures, whereas the latter always holds up. Alessandro Pluchino, Andrea Rapisarda, and Cesare Garofalo (2010) used an agent-based modelling approach to simulate the promotion of employees in a system where the Peter principle is assumed to be true. They found that the best way to improve efficiency in an enterprise is to promote people randomly, or to shortlist the best and the worst performer in a given group, from which the person to be promoted is then selected randomly. For this work, they won the 2010 edition of the parody Ig Nobel Prize in management science. Later work has shown that firms that follow the Peter Principle may be disadvantaged, as they may be overtaken by competitors, or may produce smaller revenues and profits; as well why success most often is a result of luck rather than talent—work which earned Pluchino and Rapisarda a second Ig Nobel Prize in 2022. In 2018, professors Alan Benson, Danielle Li, and Kelly Shue analyzed sales workers' performance and promotion practices at 214 American businesses to test the veracity of the Peter principle. They found that these companies tended to promote employees to a management position based on their performance in their previous position, rather than based on managerial potential. Consistent with the Peter principle, the researchers found that high performing sales employees were likelier to be promoted,