 Why is Jones a change in the pricing structure for supply runs?
Four days reserve—plus one is five—plus sixteen days normal supply equals twenty-one days to live. By the light of this, he reinspected the steam system, and found about three gallons of water frozen in the condenser. This boiling lowered the temperature, and the condenser demonstrated its efficiency by quickly freezing the water in the tank. For example, because of an order of his stating that there would be no alcoholic beverages within the survey building, the entire survey was assured of a constant supply of home-made, but passably good liquor. It was used mostly, from sun-up to sun-down, to supplement the nuclear power plant.
 It would allow more necessary supplies to reach Earth
 He thinks it would save time in writing contracts  He thinks he can make a bigger profit if he has more control  It would allow more necessary supplies to reach Earth  He wants to be able to carry more expensive supplies