LIZ KENDALL MP: Social democrats are too often defined by what they are against rather than what they are for.
PAULA SURRIDGE: The old left-right divide means less and less as voters struggle to fit themselves into party boxes. If the centre-left is to revive, it must work within this new landscape.
JANNIKE WACHOWIAK: German social democrats are reeling from poor election results. Where can they go from here?
JAMES SLOAM AND MATT HENN: New generations of young adults are more cosmopolitan than older generations. If this trend continues, it will transform the political landscape.
LAURA PIDCOCK: Simplifying processes and stripping away some of the pomp and ceremony could make a big difference to the way parliamentary business is done. But it is even more important to focus on the systemic change.
PAUL MASON: Inertia, inexperience and insularity are the enemy of radical government. Here are 10 suggestions for delivering change in power.