Wild animals do not work and they live on what they get in wild. Domestic animals do not earn too. They are fed by their masters. Children , old and sick people are parasitic sub-ordinates to their bread earners. A person has to earn some thing for his own and for his sub-ordinates' survival.
Earning of a person is consumable equivalent available to him within a time unit against his physical and mental work and that depends upon output of his work and his working situation and surroundings. Only working person earns some thing. Non-working persons live either on accumulated earning ofr as parasites on others' earnings. Time value of a person is sum of consumable accessible to a person from all sources in a unit time. People may live without earning but they can not do so without time value. Any human being with zero time value is a dead person. So time value of a person or personal time is accessible amount of consumables of person within a unit time. In other words, time value is amount of consumables (materials & services) available from different sources accessible to him. While for working person earning is main portion of time value, donation or charity or accumulated earning or subsidies are main source for parasitic sub-ordinates. Children too have their time value though they have no earning.
Who is more prosperous? A person earning Rs. 70,000 in New York or a person earning Rs.15,000 in Kathmandu? Does person earning Rs.100,000 per annum lives better life than a child of millionaire parents? Looking deeply in these condition we find that though earning may be main component of prosperity, it is not the final one and that too depends upon situations and environments. Among two persons, we can find more prosperous and less prosperous by comparing their time value. Among many people we can make a comparative time value list. This may be for one environment, for one condition. For example, we can compare prosperity of similar professionals in one locality and in one condition. For different professions in different locality , in different condition, first we should get prosperity between localities, between professions and between conditions.
Thus, prosperity of an individual is a comparative expression of its time value with that of others in similar conditions. For example, individuals A, B, C of similar profession live in same condition and locality with time values WA, WB, WC respectively. Let TA, TB, TC be their comparative prosperity, then
TA = WA/ WA=1
TB= WB/ WA
TC= WC/ WA
If TB and TC are less than TA , B and C are less prosperous than A and if more, they are more prosperous. Prosperity of a single individual can not be measured. Change in one's time value may change one's prosperity and equally change in others' time may change one's prosperity too.
In above example, if A, B, C are n individuals in a society or group, then time value of group G is
WG = WA + WB + WC + ………… to n times
and average of that group is
WGAV = WG/n
Groups may be professional, institutional, regional, political and of all sorts. Prosperities between two individuals of two different groups are effected by prosperity of corresponding group strata or level. Average time value of the group individual rather than total time value will represent the prosperity of the group. For example, in a group it the sum of all individual time values is WG, then time value WGAV
WGAV = WG / n
and prosperity of individual in the group will be
T1 = WG1/WGAV ; T2 = WG2 / WGAV and so goes up to Tn
or
Ti = WGi / WGAV where I = 1,2,3,4, ………….n-1, n
Similarly, prosperity of individual in group B with respect to that of group A
T of group B/ T of group B = Average time value in group B/ Average time of group A