does this makes sense, The analysis of MPL results at NMUH indicates a concerning trend: labor productivity has declined compared to the pre-COVID period. The theory would suggest that this decline is a result of the law of diminishing returns, which suggests that adding more units of a variable input (labor) to a fixed amount of other inputs will eventually lead to smaller increases in output or in this case the MPL is negative which underscores the need to investigate the underlying issues affecting labor productivity within the hospital. While the study cannot definitively confirm NMUH's labor productivity challenges before December 2019, historical data from the Office for National Statistics (ONS) reveals a persistent struggle with productivity within the NHS