Marc Frank, Reuters

HAVANA (Reuters) - Cuba's reform plans to attract more overseas investment are off to a slow start as the government focuses more on regulating existing foreign joint ventures than encouraging new ones, businessmen and diplomats say.

In fact, Cuba has closed more joint ventures than it has opened since the ruling Communist Party adopted wide-ranging economic reforms a year ago, and remains far off highs reached in the 1990s, according to official reports....