General elections are scheduled to be held in Panama on 5 May 2019. Due to constitutional term limits, Incumbent President Juan Carlos Varela will be ineligible for a second consecutive term.
Of the 71 members of the National Assembly, 26 will be elected in single-member constituencies and 45 by proportional representation in multi-member constituencies. Each district with more than 40,000 inhabitants forms a constituency. Constituencies elect one MP for every 30,000 residents and an additional representative for every fraction over 10,000.
In single-member constituencies MPs are elected using the first-past-the-post system. In multi-member constituencies MPs are elected using party list proportional representation according to a double quotient; the first allocation of seats uses a simple quotient, further seats are allotted using the quotient divided by two, with any remaining seats are awarded to the parties with the greatest remainder.
Sources and further reading:
Panama to hold presidential election in May 2019
No Clear Favourite In 2019 Panamanian Election