This is my original sentence:
And it is unfair that some workers are entitled to fewer weeks of benefits simply because the unemployment rate in their region is lower than that in some other regions.
What is the best way to make the part in bold less wordy?
The full thing would read "... simply because the unemployment rate in their region is lower than the unemployment rate in some other regions."
Other options I tried include the following: ... simply because the unemployment rate in their region is
lower than in some other regions.
lower than elsewhere.
lower relative to other regions.
Background: The country is divided into 62 "regions". These regions have their own unemployment rates. Unemployed workers receive longer duration of unemployment benefits (greater weeks) in regions of higher unemployment. The higher the unemployment rate in the region, the greater is the number of weeks of benefits offered. So workers in region A (where the rate is 6%) will get lower weeks of benefits than workers in region B (where the rate is 7%)