MONDAY

Tourism employees hold a four-hour work stoppage from noon to 4 p.m. with a rally at 1 p.m. outside the office of the Panhellenic Hoteliers’ Association.

The Hellenic Statistical Authority (ELSTAT) will publish its February 2012 data on retail commerce turnover.

Athens-listed Cyprus Popular Bank to announce its financial results for 2011.

TUESDAY

May Day holiday. Ferry services to be disrupted owing to a 24-hour strike by the two seamen’s unions. Athens buses will run from 7 a.m. to 10 p.m., trolley buses will operate from 7.30 a.m. to 10 p.m., and the Athens Metro and the Kifissia-to-Piraeus electric subway (ISAP) will run from 8 a.m. onwards.

WEDNESDAY

Communist Party (KKE) to hold its main election rally at Pedion tou Areos park, in central Athens. General Secretary Aleka Papariga to speak.

Courts will close until May 9, due to Sunday’s elections.

The National Documentation Center is holding a one-day event on ”Research Activity Indices and Policy Planning for Research, Technological Development and Innovation,” at the Leonidas Zervas amphitheater of the National Research Foundation in Athens. (Info: 210.727.3965, tzenou@ekt.gr)

The Thessaloniki Professional Chamber and the General Consulate of Bulgaria in Thessaloniki are organizing an event on “Business Opportunities for Enterprises at Border Regions in Greece and Bulgaria,” at the chamber’s functions hall, 27 Aristotelous. (Info: www.eeth.gr)

THURSDAY

New Democracy leader Antonis Samaras to hold his final election rally in central Athens.

The Association of Northern Greece Exporters (SEVE) is holding a conference titled “Export Summit: Roadmap to Growth” at the Hyatt Regency Thessaloniki hotel, through Friday. (Info: www.exportsummit.gr)

The “Emerging Clusters: Excellence and Innovation in the Energy Sector” seminar starts at the Divani Palace Acropolis Athens hotel, 19-25 Parthenonos. The event is under the auspices of the European Commission. Until Friday. (Info: 210.660.3227, liza@cres.gr)

Listed company Fintexport to announce its financial results for 2011.

FRIDAY

PASOK president Evangelos Venizelos to hold his final election rally in central Athens.

Schools to close due to the upcoming elections. They will reopen on May 8.

The National Technical University of Athens and the Athens University of Economics and Business organize a two-day event on “Research-Innovation-Entrepreneurship” at the Leonidas Zervas amphitheater of the National Research Foundation. Until Saturday. (Info: mke.ntua.gr)

The Hellenic American Union is hosting the annual lecture of the Greek Society of Education Historians by University of London’s Professor Gary McCulloch on “New Directions in the History of Education.” The event will be in English with a Greek translation, at 7.30 p.m. at the HAU’s theater, 22 Massalias, Kolonaki, Athens. (Info: www.eleie.gr)

Listed company Pegasus Publishing to hold a general meeting.

SUNDAY

General elections take place from 7 a.m. to 7 p.m.

The 3rd Russian-Hellenic Bionanotox Symposium on “Biomaterials and Bionanomaterials: Recent Problems and Safety Issues” opens at Iraklio, Crete. Until May 13. (Info: www.bionanotox.org)