2. Leaders and candidates by personality
Partyforumseasia: Business psychology is probably better researched than political psychology, but the parallels can be striking. Daniel A. Pink, author of “To Sell is Human” writes in the Washington Post of 28 January 2013:

“…leaders are often pitching customers and clients, of course. But they’re also persuading employees, convincing suppliers, sweet-talking funders or cajoling a board. At the core of their exalted work is a less glamorous truth: Leaders sell.
...and attract and convince party members and voters.
Experience and conventional wisdom seems to suggest that “born” leaders are more extrovert than introvert. Their shortcomings are evident, though:
“Extroverts can talk too much and listen too little. They can overwhelm others with the force of their personalities. Sometimes they care too deeply about being liked and not enough about getting tough things done.”
If introverts are too shy as leaders, Pink suggests a middle way, the ambivert:
“We’d be far better off with those who take a more calibrated approach — who can talk smoothly but also listen keenly, who know when to turn on the charm but also when to turn it off, who combine the extrovert’s assertiveness with the introvert’s quiet confidence. In other words, when it comes to picking leaders, perhaps we should look for people a bit more like us.”
The 1000 $ question: Which type of personalities dominates our parties?
...and attract and convince party members and voters.
Experience and conventional wisdom seems to suggest that “born” leaders are more extrovert than introvert. Their shortcomings are evident, though:
“Extroverts can talk too much and listen too little. They can overwhelm others with the force of their personalities. Sometimes they care too deeply about being liked and not enough about getting tough things done.”
If introverts are too shy as leaders, Pink suggests a middle way, the ambivert:
“We’d be far better off with those who take a more calibrated approach — who can talk smoothly but also listen keenly, who know when to turn on the charm but also when to turn it off, who combine the extrovert’s assertiveness with the introvert’s quiet confidence. In other words, when it comes to picking leaders, perhaps we should look for people a bit more like us.”
The 1000 $ question: Which type of personalities dominates our parties?