Malaysians have become unhappier of late, according to the 2015 United Nations-backed World Happiness Report. The country dropped 10 places from 2012 to rank 61st place.
Highlighting the report, Kampar MP Dr Ko Chung Sen believed the unhappiness is caused by the Goods and Services Tax (GST) and the 1MDB issue.
The DAP MP also cited the 2013 Malaysia Wellbeing Report that showed the overall wellbeing of Malaysia improving by 25.4 points between 2000 and 2012.
"Why was the Malaysia Wellbeing Index going up but our World Happiness ranking going in the opposite direction," questioned Dr Ko in a press conference on Tuesday.
"Obviously the Malaysian Wellbeing Index was made up by the government to "syok sendiri" (make itself look good) and has no bearing on the nation's happiness," he said.
"The government should stop being deluded and congratulating itself while the people are unhappy and suffering from the burdens of GST and 1MDB scandals," said Dr Ko.
Malaysia Wellbeing Index was constructed using 14 components with 68 indicators to assess the impact of various policies and programs in increasing the wellbeing of Malaysians.
The economic wellbeing aspects covers communication, education, income and distribution, transport and working life.
While the social wellbeing aspects covers culture, environment, family, governance, health, housing, leisure, social participation and public safety.
In comparison, the World Happiness Report looks at six aspects: gross domestic product (GDP) per-capita, healthy life expectancy, having someone to count on, perceived freedom to make life choices, freedom from corruption and generosity.