Na družbenih omrežjih se odvija zanimiva diskusija o razlogih za zmanjšanje rodnosti, ki je univerzalno tako za razvite države kot države v razvoju. Jesús Fernández-Villaverde, profesor na univerzi Pennsylvania in eden največjih strokovnjakaov za demografske spremembe, polemizira s tezo, ki jo propagirajo nekateri, med njimi John Burn-Murdoch v Financial Timesu, da je razširitev uporabe pametnih telefonov najbrž kjlučni dejavnik v pojasnitvi strnega upada rodnosti v zadnjem desetletju in pol. Njegova teza je, da so vzroki za to “revolucijo v rodnosti” bolj široki in povezani s širšimi družbenimi spremembami. Med njimi je ena ključnih tudi razmah družbenih omrežij, ki so spremenila ne samo način izražanja in komunikacije med ljudmi, pač pa tudi način socializacije. Ljudje se družijo manj fizično in bolj virtualno, kar zmanjšuje ne samo druženje, ampak tudi potrebo pa “parjenju” (življenju v parih v smislu partnerstev). Ta recesija zmenkov in partnerstev posledično vpliva na zmanjšanje rodnosti. No, pametni telefoni so del tega procesa, ker omogočajo in pospešujejo digitalno komunikacijo prek družbenih omrežij. Brez pametnih telefonov se ta negativna revolucija v rodnosti ne bi mogla zgoditi v takšnem obsegu.
Smartphones are not the explanation for the recent decline in fertility. Instead, they are an accelerator of deeper forces already at work.
Let’s start with the facts. Fertility is falling almost everywhere: in rich, middle-income, and poor countries; in secular and religious countries; and in countries with high and low levels of gender equality.
The decline accelerated around 2014. So, no country-specific explanation will work unless you are willing to believe that 200 distinct country-specific explanations arrived at roughly the same time.
Smartphones look like the obvious candidate: the first iPhone was released in 2007, and global adoption has been astonishingly fast.
Economists understand the first major decline in fertility in advanced economies, from 6 or 7 children per woman throughout most of human history to about 1.8, that occurred between the early 1800s and roughly 1970, well before smartphones. The main drivers were a sharp fall in child mortality (effective fertility was rarely above 3 and often close to 2) and the shift from a low-skill, rural agrarian economy to a high-skill, urban industrial one. We have quantitative models that fit these facts well.
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