DEAR RAUL - HOW'S THAT COMMUNISM WORKING FOR YOU?

   When Castro steps down Thursday after two terms as president he will leave his successor a host of problems that are deeper than on the day his brother Fidel formally handed over power.
   Cuba has nearly 600,000 private entrepreneurs, more than 5 million cellphones, a bustling real estate market and one of the world's fastest-growing airports. Limited internet use is expanding fast, with thousands of Cubans installing new home connections this year. Foreign debt has been paid. Tourism numbers have more than doubled since Castro and President Barack Obama re-established diplomatic relations in 2015, making Cuba a destination for nearly 5 million visitors a year, despite a plunge in relations under the Trump administration.
     On the other side of the ledger, Cuba's Soviet-style command economy still employs three of every four Cuban workers but produces little. Private sector growth has been largely frozen. The average monthly state salary is $31 — so low that workers often live on stolen goods and handouts from relatives overseas. Foreign investment remains anemic. The island's infrastructure is falling deeper into disrepair. The break with Washington dashed dreams of detente with the U.S., and after two decades of getting Venezuelan subsidies totalling more than $6 billion a year, Cuba's patron has collapsed economically with no replacement in the wings.