Originally posted 17 November 2007, this Vox column is more relevant than ever arguing that adopting the euro is effectively irreversible. Leaving would require lengthy preparations, which, given the anticipated devaluation, would trigger the mother of all financial crises. National households and firms would shift deposits to other Eurozone banks producing a system-wide bank run. Investors, trying to escape, would create a bond-market crisis. Here is what the train wreck would look like.

Eurozone policy seems driven by market sentiment. This column argues that fear and panic led to excessive, and possibly self-defeating, austerity in the south while failing to induce offsetting stimulus in the north. The resulting deflation bias produced the double-dip recession and perhaps more dire consequences. As it becomes obvious that austerity produces unnecessary suffering, millions may seek liberation from ‘euro shackles’.

Debt is the crux of advanced economies’ current policy debates. Some argue for fiscal expansion to avoid recession and deflation. Others claim that you can’t solve a debt-created problem with more debt. This column explains the core logic of a new model by Eggertsson and Krugman in which debt shocks and policy reactions can be examined. Relying on heterogeneous agents, the model naturally produces the paradox of thrift but also finds new supply-side paradoxes, those of toil and flexibility. The model suggests that most economists have been misthinking the issues and that actual policy in the US and EU is misguided.

The 'Scramble for Africa' – the artificial drawing of African political boundaries among European powers in the end of the 19th century – led to the partitioning of several ethnicities across newly created African states. This columns shows that partitioned ethnic groups have suffered significantly longer and more devastating civil wars. It also uncovers substantial spillovers as ethnic conflict spreads from the historical homeland of groups partitioned to nearby areas where non-split ethnicities reside.

Despite the revolutionary technological advance of the printing press in the 15th century, there is precious little economic evidence of its benefits. Using data on 200 European cities between 1450 and 1600, this column finds that economic growth was higher by as much as 60 percentage points in cities that adopted the technology.

The CEPR Press eBook on secular stagnation has been viewed over 80,000 times since it was published on 15 August 2014. The PDF remains freely downloadable, but as the European debate on secular stagnation is moving into policy circles, we decided to also make it a Kindle book. This is available from Amazon; all proceeds will help defray VoxEU expenses.

Polarised politics in the wake of financial crises echo throughout modern history, but evidence of a causal link between economic downturns and populism is limited. This column shows that financial crisis-induced misery boosted far right-wing voting in interwar Germany. In towns and cities where many firms were exposed to failing banks, Nazi votes surged. In particular, places exposed to the one bank led by a Jewish chairman registered particularly strong increases of support – scapegoating Jews was easier with seemingly damning evidence of their negative influence.  

Societies characterised by a high transmission of socioeconomic status across generations are not only more likely to be perceived as ‘unfair’, they may also be less efficient as they waste the skills of those coming from disadvantaged backgrounds. Existing evidence suggests that the related earnings advantages disappear after several generations. This column challenges this view by comparing tax records for family dynasties (identified by surname) in Florence, Italy in 1427 and 2011. The top earners among the current taxpayers were found to have already been at the top of the socioeconomic ladder six centuries ago. This persistence is identified despite the huge political, demographic, and economic upheavals that occurred between the two dates. 

Do children do better if they start school later? Contrary to the great concerns of many parents, this column says that the age at which kids start school matters little.

Obesity and teenage sex have become social and public health issues in developed countries. This column looks at the effects of being overweight on attitudes to sex among teenage girls in the US. While obesity is associated with less vaginal intercourse, overweight teenage girls are at least 15% more likely to have had anal sex, with a high chance of sexually transmitted disease.

The top 1% of US earners now command a far higher share of the country's income than they did 40 years ago. This column looks at 18 OECD countries and disputes the claim that low taxes on the rich raise productivity and economic growth. It says the optimal top tax rate could be over 80% and no one but the mega rich would lose out.

Britain eschewed EU membership in the late 1950s but changed its mind in the early 1960s, only to be rebuffed by Charles de Gaulle. Membership came only in the early 1970s. This column argues that, among others, Britain joined the EU as a way to avoid its economic decline. The UK’s per capita GDP relative to the EU founding members’ declined steadily from 1945 to 1972. However, it was relatively stable between 1973 and 2010. This suggests substantial benefits from EU membership especially considering that, by sponsoring an overpowered integration model, Britain joined too late, at a bad moment in time, and at an avoidably larger cost.