dallas_fed |>
filter(countryname %in% c("Italy", "France", "United States", "Japan"),
variable == "RPDI",
date >= as.Date("1990-01-01")) |>
add_flag_color("countryname") |>
ggplot() + theme_minimal() + xlab("") + ylab("Real Price / Dividends Ratio") +
geom_line(aes(x = date, y = value, color = color)) +
scale_color_identity() + add_4flags +
scale_x_date(breaks = seq(1920, 2100, 5) |> paste0("-01-01") |> as.Date(),
labels = date_format("%Y")) +
scale_y_log10(breaks = c(seq(0, 500, 10), seq(10, 50, 10))) +
theme(legend.position = c(0.25, 0.8),
legend.title = element_blank())