Miroslav Nemčok

Parties and their actions almost always shape the preferences, attitudes, and behaviour of their voters. However, does partisan influence over public opinion apply to all policy proposals regardless of their initial popularity and to all voters regardless of their degree of partisan attachment? This question is addressed in the real-world context of Finland, where the government enacted two reforms at the same time: an initially popular reform extending the age of compulsory education, and an initially unpopular removal of the ‘retirement tube’ for older laid-off workers. An original panel survey asked respondents about their attitudes before and after the government actions, finding that while voters of government parties increasingly tended to support the enacted policies, the magnitude of opinion change depended on voters’ initial policy preferences and party attachment. Strong party attachment led to government voters increasing their support for a reform that they initially opposed. In contrast, those with weaker partisan attachments tended to alter their preferences for an initially popular reform. These findings are relevant for understanding partisan influence over public opinion in a broader political context.

Enormous growth of the world population during the last two centuries and its present slowing down pose questions about precedents in history and broader forces shaping the population size. Population estimates collected in an extensive survey of literature (873 estimates from 25 studies covering 1,000,000 BCE to 2100 CE) show that world population growth has proceeded in two distinct phases of acceleration followed by stoppage—from at least 25,000 BCE to 100 BCE, and from 400 CE to the present, interrupted by centuries of standstill and 10% decrease. Both phases can be fitted with a mathematical function that projects to a peak at 11.2 ± 1.5 billion around 2100 CE. An interaction model can account for this acceleration-stoppage pattern in quantitative detail: Technology grows exponentially, with rate boosted by population. Population grows exponentially, capped by Earth’s carrying capacity. Technology raises this cap, but only until it approaches Earth’s ultimate carrying capacity.