diff --git a/src/Makefile.am b/src/Makefile.am
index 1fa4ee9..f20e63a 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -34,6 +34,7 @@ trader_SOURCES	= \
 	globals.c	globals.h	\
 	game.c		game.h		\
 	move.c		move.h		\
+	exch.c		exch.h		\
 	fileio.c	fileio.h	\
 	help.c		help.h		\
 	intf.c		intf.h		\
diff --git a/src/README b/src/README
index bc63448..5baa2f8 100644
--- a/src/README
+++ b/src/README
@@ -12,6 +12,7 @@ source code is split up among the following files:
     globals.c   globals.h   - Global game constants and variables
     game.c      game.h      - Game start and end routines
     move.c      move.h      - Routines for making and processing a move
+    exch.c      exch.h      - Stock Exchange and Bank routines
     fileio.c    fileio.h    - Load and save game file routines
     help.c      help.h      - Help text routines: how to play Star Traders
     intf.c      intf.h      - Basic text input/output routines
diff --git a/src/exch.c b/src/exch.c
new file mode 100644
index 0000000..6d1fba8
--- /dev/null
+++ b/src/exch.c
@@ -0,0 +1,42 @@
+/************************************************************************
+*                                                                       *
+*             Star Traders: A Game of Interstellar Trading              *
+*                Copyright (C) 1990-2011, John Zaitseff                 *
+*                                                                       *
+************************************************************************/
+
+/*
+  Author: John Zaitseff <J.Zaitseff@zap.org.au>
+  $Id$
+
+  This file, exch.c, contains the implementation of functions dealing
+  with the Interstellar Stock Exchange and Trading Bank as used in Star
+  Traders.
+
+
+  This program is free software: you can redistribute it and/or modify it
+  under the terms of the GNU General Public License as published by the
+  Free Software Foundation, either version 3 of the License, or (at your
+  option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program.  If not, see http://www.gnu.org/licenses/.
+*/
+
+
+#include "trader.h"
+
+
+/************************************************************************
+*                  Stock Exchange function definitions                  *
+************************************************************************/
+
+void exchange_stock (void)
+{
+    // @@@ To be written
+}
diff --git a/src/exch.h b/src/exch.h
new file mode 100644
index 0000000..7dc8d59
--- /dev/null
+++ b/src/exch.h
@@ -0,0 +1,42 @@
+/************************************************************************
+*                                                                       *
+*             Star Traders: A Game of Interstellar Trading              *
+*                Copyright (C) 1990-2011, John Zaitseff                 *
+*                                                                       *
+************************************************************************/
+
+/*
+  Author: John Zaitseff <J.Zaitseff@zap.org.au>
+  $Id$
+
+  This file, exch.h, contains declarations for functions dealing with the
+  Interstellar Stock Exchange and Trading Bank as used in Star Traders.
+
+
+  This program is free software: you can redistribute it and/or modify it
+  under the terms of the GNU General Public License as published by the
+  Free Software Foundation, either version 3 of the License, or (at your
+  option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program.  If not, see http://www.gnu.org/licenses/.
+*/
+
+
+#ifndef included_EXCH_H
+#define included_EXCH_H 1
+
+
+/************************************************************************
+*                 Stock Exchange function declarations                  *
+************************************************************************/
+
+extern void exchange_stock (void);
+
+
+#endif /* included_EXCH_H */
diff --git a/src/game.c b/src/game.c
index 828f5d9..cd63c02 100644
--- a/src/game.c
+++ b/src/game.c
@@ -487,11 +487,6 @@ void end_game (void)
     free(buf);
 }
 
-void exchange_stock (void)
-{
-    // @@@ To be written
-}
-
 
 /*-----------------------------------------------------------------------
   Function:   show_map   - Display the galaxy map on the screen
diff --git a/src/game.h b/src/game.h
index 1a6a4b2..a073e29 100644
--- a/src/game.h
+++ b/src/game.h
@@ -42,8 +42,6 @@
 extern void init_game (void);
 extern void end_game (void);
 
-extern void exchange_stock (void);
-
 extern void show_map (bool show_moves);
 extern void show_status (int num);
 extern double total_value (int num);
diff --git a/src/trader.h b/src/trader.h
index 2a6debc..74b0762 100644
--- a/src/trader.h
+++ b/src/trader.h
@@ -51,6 +51,7 @@
 #include "globals.h"
 #include "game.h"
 #include "move.h"
+#include "exch.h"
 #include "fileio.h"
 #include "help.h"
 #include "intf.h"