Professions
===========

The population's potential activities are:
  - agriculture
  - fishing
  - industrial work
  - trading
  - serving in the army
  - being unemployed

You determine only the number of soldiers directly, but indirectly you can
influence all of the professions. It is very important because the various
activites provide different incomes, and thus the tax revenues are affected
as well. Provided that all sciences have the same level, the ratio of revenues
are following:
      unemployed : peasant : fisher : worker : merchant
            0    :    1    :   1    :    2   :    4
And of course we shouldn't forget that unemployment spoils the morale. To be a
bit more exact: The morale is multiplied by the employment rate.


What factors (and in which sequence) influence the professions?
---------------------------------------------------------------

1. Soldiers
     You can set their number exactly by recruiting and demobilizing.
2. Merchants
     Their number is calculated by the following formula:
       (2% of the population) * (science level of trade) * (trading area)
      The size of trading area depends on the position of the countries you
      trade with, and on the strength of your fleet:
       - neighbouring empires count with 100% of their land area
       - the land areas of empires that can be reached by sea are modified by
         the proportion of your territorial waters
       - unapproachable (or neutral or enemy) countries don't count at all
     The proportion of merchants cannot exceed 20% of the population.
3. Workers
     Their number:
       (10% of the population) * (science level of industry)
     Maximum limit: 50% of population
4. Peasants
     The rest of your subjects is divided between peasants and fishermen in the
     ratio of the food producing potential of your land and sea territories.
     The maximum number of peasants:
       (food potential of your lands) * (level of agriculture) * 80
5. Fishermen
     Their maximum number:
       (length of coast) * (1 + sea proportion) * (level of sailing) * 25
6. Unemployed
     If some people still don't have a job, they remain unemployed.

So to make a long story short, the best way to decrease unemployment is to 
develop the various branches of science - with exception of medicine!