The cross-country variation in the data is quite rich: can you please generate a list of potential covariates available at the country level that could explain either (a) the size of the Covid-19 effects ("increase in book consumption moderated by..."), or the (b) duration of (long-term) effects (e.g., "effects last longer because consumers in country A have this and that attribute).
A few ideas:
Hofstede
European Social Survey (I think that's what it is called)
Also check out Jan Benedict Steenkamp's work on international marketing. Inge Geyskens also uses a lot of country characteristics.
The cross-country variation in the data is quite rich: can you please generate a list of potential covariates available at the country level that could explain either (a) the size of the Covid-19 effects ("increase in book consumption moderated by..."), or the (b) duration of (long-term) effects (e.g., "effects last longer because consumers in country A have this and that attribute).
A few ideas:
Also check out Jan Benedict Steenkamp's work on international marketing. Inge Geyskens also uses a lot of country characteristics.