Comparison

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Because every portal follows the same fifteen-section outline, the comparison is genuinely like-for-like rather than a collage of whatever each government happens to publish.

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Comparison of selected legal systems
Attribute	MonacoReviewed	MexicoReviewed	RomaniaReviewed
Legal familyIdentical	Civil law	Civil law	Civil law
System of government	Constitutional hereditary monarchy	Federal presidential republic	Unitary semi-presidential republic
Constitution	Constitution of the Principality of Monaco	Political Constitution of the United Mexican States	Constitution of Romania
In force since	1962	1917	1991
Capital	Monaco	Mexico City	Bucharest
Official languages	French	Spanish, Nahuatl, Yucatec Maya	Romanian
Currency	Euro (EUR)	Mexican peso (MXN)	Romanian leu (RON)
Population	39,000	130,000,000	19,000,000
Division of powers	A unitary state of about two square kilometres with a single commune. Legislative power is exercised jointly by the Prince and the National Council; executive power belongs to the Prince, exercised through the Minister of State and the Government Council; judicial power is delegated by the Prince to the courts, with the Tribunal Suprême acting as both constitutional and supreme administrative court.	Federal. Powers not expressly granted to the union are reserved to the 32 states (Article 124). States run their own civil, family and criminal-enforcement codes, but criminal procedure, labour and commercial law were federalised to produce single national codes.	Semi-presidential: a directly elected President shares executive power with a Government answerable to Parliament, and constitutional conflicts between them are themselves justiciable before the Constitutional Court.
How law is made	A bill may be initiated by the Prince or proposed by the National Council. Government bills are laid before the Council, examined in committee and voted; adoption requires the agreement of both the Prince and the Council. The Prince then promulgates the law by sovereign ordinance and it is published in the Journal de Monaco.	Bills may be introduced by the President, either chamber, state legislatures or by citizens with 0.13% of the electoral roll. Both chambers must pass an identical text; the President may veto, and Congress overrides with two-thirds of each chamber. Constitutional amendments need two-thirds of Congress plus a majority of state legislatures (Article 135).	A bill goes to a first-notified chamber and then to the decisional chamber, whose vote is final. The President may return it once for reconsideration or refer it to the Constitutional Court before promulgation and publication in Monitorul Oficial.
Legal profession	A small bar of avocats-défenseurs, avocats and avocats stagiaires, organised as the Ordre des Avocats, with admission requiring Monegasque nationality preference, a law degree and a traineeship. French avocats may appear in specified circumstances. Notaries are appointed by sovereign ordinance and are few in number.	A law degree plus a cédula profesional from the Education Ministry licenses practice; there is no compulsory bar examination or single mandatory bar, which distinguishes Mexico from most of the region. Notaries public are a separate, strictly limited state-appointed profession with exclusive competence over real estate and company deeds.	Lawyers (avocați) are admitted through local bars affiliated to the UNBR after examination and a two-year traineeship; notaries and judicial enforcement officers are separate professions.

A comparison table flattens nuance by design. Where a difference matters to a decision you are making, open both portals and read the section in full — the constitutional detail behind a one-line summary is often the part that governs the outcome.