The role of provisions of the collective agreement and their impact on the content of the employment contract

Collective agreements are written and published agreements between certain parties, who are entitled by law to conclude these agreements, which have general and abstract provisions with binding impacts on the employment relationship. An employment contract is an agreement between an employee and an employer under which the employee undertakes to do work for the employer in subordination to the management and supervision of the employer, and the employer undertakes to remunerate the employee for such work and to provide the working conditions prescribed in the agreement between the parties, a collective agreement, law or administrative legislation. Collective agreements are not regarded to be parts of the contract of employment, therefore it does not modify the contract, but if the provision of the new collective agreement are more favourable than certain parts of the contract, than the clauses of the collective agreements are valid for the employment relationship an the contractual clause is void