Facts

[A.], born in 1982, was employed at B. Ltd. at a rate of 80% from July 1, 2010 to January 31, 2013. After termination of the employment relationship, she registered with the unemployment insurance for benefits as of February 26, 2013 on March 21, 2013. The Unia Unemployment Insurance Fund set the insured earnings for the period from February 26, 2013 to December 31, 2013 at CHF 3,020 and from January 1, 2014 at CHF 4,027, as [A.] had stated upon registration that she was willing and able to work a maximum of 60% of a full-time position.

The Social Insurance Court of the Canton of Zurich upheld A.'s appeal and amended the objection decision, ruling that [A.] was also entitled to unemployment benefits for the period from February 26 to December 31, 2013, based on a chargeable loss of work of 80%.

The Unia Unemployment Insurance Fund appeals, requesting that the objection decision of August 8, 2014 be confirmed.

Considerations

The Federal Supreme Court upholds the appeal of the Unia Unemployment Insurance Fund. It finds that the lower court incompletely established the legally relevant facts and disregarded the principle of investigation. It is undisputed that [A.] confirmed in writing upon…