diff --git a/okama/settings.py b/okama/settings.py
index 63f69cc..5085692 100644
--- a/okama/settings.py
+++ b/okama/settings.py
@@ -11,6 +11,7 @@
 default_macro_indicator = "USA_CAPE10.RATIO"
 
 DEFAULT_DISCOUNT_RATE = 0.05
+DEFAULT_INITIAL_INVESTMENT = 1000.
 
 _MONTHS_PER_YEAR = 12
 PeriodLength = namedtuple("PeriodLength", "years months")