'more favourable conditions' is correct and usable in written English.
You can use it when referring to conditions that are better than what preceded them. For example: "The company recently negotiated more favourable conditions with its suppliers, resulting in cost savings."
Only a fraction of such populations probably sought more favourable conditions elsewhere, but natural selection favoured the "migrants," and migratory tendencies were retained.
Lower credit rates and more favourable conditions all around.
So, the aim of yesterday's announcement is to create more favourable conditions for the businesses that run the 300 licences.
With the arrival of more favourable conditions, ecdysone is again secreted, and development resumes.
The square-backed crabs (Sesarma) become less active, reducing their oxidative metabolism until more favourable conditions prevail.
The new elector, Frederick III Frederickk I of Prussia), reaped the results of his father's policy under more favourable conditions.
But RWE admitted it had often only been able to retain customers with expired contracts by offering them new deals with more favourable conditions.
Sunglider stayed on well from a mile back at Catterick last time, giving the impression that he might be ready to win under more favourable conditions.
Kerry also suggested that a change of either Israeli or Palestinian leadership might create more favourable conditions for peace and the final, long-delayed agreement on the shape of a Palestinian state.
"Those who were involved in deliberate fraud must not enjoy more favourable conditions than those who did the right thing and abided by the law," Mr Putin told the Russian chamber of commerce and industry last week.
In many areas the shrubs belong to species that are able, under more favourable conditions, to develop into trees, but in others they always grow into shrub form regardless of the environment.
