Due to unexpectedly high number of registrations, the maximum number of people that can participate to ACE Barcelona 2021 under COVID-safe conditions has been reached. Unfortunately for this reason and to ensure a safe environment for the participants, registrations are now closed. Please contact us for any urgents matters related to these circumstances.


All transactions are in euros.

Once the transaction is confirmed, a receipt will be issued. At that point in time you are member of ACE for the current calendar year. Your receipt is proof of membership.

You can pay online with Visa Card, Mastercard, Diners, American Express or Maestro. Any communication between you and ACE is encrypted. This means that no-one else can see your credit card information.

Your credit card information is sent directly to the payment service provider and ACE does not retain the credit card information.

The payment is approved by our payment service provider.

A 14 day right of regret pertains to the transaction. If the purchase of the object of the agreement is regretted, the total amount of the purchase will be transferred back to the buyer's account.

Policy regarding personal information and GDPR
Once you register for the annual conference (or any other ACE event), you need to provide contact details and these are added to our database. Our database is used to inform our current or past members about the association’s activities. It is not used for any other purpose nor shared with any third party. If you do not wish to be included in our database, you can request at any time that your contact details are removed from our database by sending an email to our secretariat: conference@competitioneconomics.org