As president, Aquino oversaw the drafting of the 1987 Constitution, which limited the powers of the Presidency and re-established the bicameral Congress, successfully removing the previous dictatorial government. Her economic policies focused on forging good economic standing amongst the international community as well as disestablishing Marcos-era crony capitalist monopolies, emphasizing the free market and responsible economy. Her administration conducted peace talks to resolve the Moro conflict, and the result of these talks was creation of the Autonomous Region in Muslim Mindanao. Aquino was also criticized for the Mendiola Massacre, which resulted in the shooting deaths of at least 12 peaceful protesters by Philippine state security forces. The Philippines faced various natural calamities in the latter part of Aquino's administration, such as the 1990 Luzon earthquake and Tropical Storm Thelma. During her term in office, several "coup" attempts were made against Aquino's government. She was succeeded as president by Fidel V. Ramos and returned to civilian life, and remained a notable political figure for the rest of her life.