BUG: fix data type for coerced firm IDs

jeffgortmaker · Jan 4, 2023 · ae4418e · ae4418e
1 parent 09600d7
commit ae4418e
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/pyblp/economies/economy.py b/pyblp/economies/economy.py
@@ -250,7 +250,7 @@ def _coerce_optional_firm_ids(self, firm_ids: Optional[Any], market_ids: Optiona
         """
         if firm_ids is None:
             return None
-        firm_ids = np.c_[np.asarray(firm_ids, options.dtype)]
+        firm_ids = np.c_[np.asarray(firm_ids, np.object_)]
         rows = self.N
         if market_ids is not None:
             rows = sum(i.size for t, i in self._product_market_indices.items() if t in market_ids)