Biology geeks would know that biotic potential is the capability of a inhabitants to extend. It’s quantified with the letter r, as in exp(rt), which finance geeks might acknowledge because the rate of interest. r is decided by the steadiness between start fee, dying fee, emigration and immigration. The physics geeks might arrange a pleasant continuity equation for the inhabitants, the place migration is expressed as a divergence and start/dying are expressed as response sources and sinks.
Now, for the maths geeks it might be fascinating to notice that r has a bounded vary for many methods. Which means that r>0 contained in the vary, r=0 on the vary (the definition of the vary), and r<0 outdoors the vary. In different phrases, contained in the vary, you’ve got inhabitants development (or portfolio development for the traders), outdoors the vary, you’ve got inhabitants die-off (or monetary destruction. It isn’t exhausting to think about the vary altering with areas turning into uninhabitable or investments turning bitter in a altering macro-environment. Russia, as an example, has been experiencing a inhabitants decline, maybe as operate of each.
The coverage geeks (or is that wonks?) shall be to notice that r might be manipulated. What coverage geeks typically ignore is that this adjustments the area; perhaps they need to seek the advice of with the maths geeks, or maybe operational analyst geeks. Inhabitants will enhance quicker/slower if females give start youthful/older. Nations or religions that rely upon vertical transmission of affiliation (that’s, you’re born in to, verify along with your meme/sociology geek) will typically encourage strategies that trigger earlier baby start and discourage strategies that encourage later baby start. Organizations that rely upon horizontal transmission (e.g. your friends relatively than your dad and mom) will encourage the alternative preferring high quality over amount. What sort of transmission does investing rely upon? Your economics geek will most likely say vertical for macro and horizontal for micro.
Jacob, Geek of all trades.
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Initially posted 2009-04-07 15:09:33.