Jo's contract of employment states that she is employed in Glasgow. When her employer tells her that she has to work in London, some 500 miles away, Jo immediately resigns. Which of the following may this be considered an example of?

This situation can be considered an example of constructive dismissal because Jo's resignation is a response to a significant change in her employment terms that she did not agree to. Constructive dismissal occurs when an employee feels compelled to resign due to the employer's behavior, which breaches the terms of the employment contract or creates an intolerable work environment.

In Jo's case, her contract clearly states that she is employed in Glasgow, so being required to work in London represents a fundamental change to her job conditions without her consent. Since she did not agree to this change and felt it was reasonable to resign rather than accept the new location, her actions can be seen as a response to the employer's breach of the contract.

The other options do not apply here. Summary dismissal refers to an employer terminating an employee's contract without notice due to misconduct, which was not the case here. Unfair dismissal refers to situations where an employee is terminated in a way that does not adhere to legal standards, while mutual agreement suggests that both parties have come to a consensual decision regarding the employment terms, which clearly did not occur in this instance.