Our framework implies an arbitrage relationship that links the risk-free real interest rate to the marginal product of capital, or MPK (the additional output from an extra unit of physical capital, such as machinery); the depreciation rate of capital; and the risk premium (which captures the riskiness of a capital investment).
total factor productivity and growth in the global working-age population (factors affecting MPK) are projected to be lower than they were before.
Decreases in the expected MPK, increases in the depreciation rate, and/or increases in the risk premium will be, all else being equal, reflected in a decrease in the real interest rate.
The first extension of the baseline model--which we call the "multisector" MPK relationship--is given as follows:
When subjects used a C-Leg (Ottobock; Duderstadt, Germany) microprocessor prosthetic knee (MPK), they completed the obstacle course more quickly and with fewer steps than when they used non-microprocessor knees (NMPKs).
Given the uncertainty between obstacle course completion time relative to prosthetic-knee type, considering complex walking terrains were used in one study  and household floor surfaces in another , further assessment of household and functional tasks with MPK use is needed.
The Genium MPK (Ottobock) has recently been introduced.
Given the Genium's objectively identified preliminary improvements over the C-Leg and its considerable design differences, the Genium was selected as the experimental prosthetic knee system in the current study to compare with the C-Leg, which is the most studied MPK.
The databases were searched with terms related to MPKs and individuals with a unilateral TFA and MFCL2 mobility grade.
As expected, we have not been able to identify an RCT with MPKs in individuals with a unilateral TFA and MFCL-2 mobility grade.
We conducted a systematic review of the literature in order to analyze whether or not individuals with a unilateral TFA and MFCL-2 mobility grade may benefit from using MPKs, as has been demonstrated for higher-functioning MFCL-3 individuals [21,23-36].
In contrast, the default setting of the two MPKs studied is to control stance stability unless they are explicitly switched into swing control.