Key legal question
Whether the cantonal court's maintenance calculation was arbitrary by starting from the 2005 contribution and deducting the child's costs and the wife's income.
Extracted holding
The method was erroneous in reasoning, but the wife failed to show that the result was arbitrary.
Extracted reasoning
In a high-income family, the maintenance should be based on the lifestyle maintained during the marriage, not on a minimum-vital calculation; however, the appellant did not demonstrate that CHF 15,000 plus her rental income could not sustain that standard.