Abstract
Many authors have described and modelled Keynesian effects in a Baby-sitting Cooperative (BSC), which has the underlying structure of a single good barter economy. We construct a simple model of the BSC economy to explore this issue, and find very surprising results. Outcomes depend on agents beliefs about the decision making process of others, as in the Keynesian beauty contest. For some structures of beliefs, money is neutral, while for others, money can have short and long run effects. The value of money can be high, low, or zero, depending purely upon expectational effects. Also, despite the fact that this is a single good economy, partial equilibrium supply and demand analysis do not work as expected. Some equilibria have excess supply, others have excess demand, and none have a match between supply and demand. Furthermore, flexible prices cannot fix this problem. An additional paradoxical property is that excessive trading can take place. Even though all trades are done with mutual consent, some of them decrease welfare, and banning certain types of trade can lead to Pareto improvements. Thus the superficially simple single good barter economy of BSC displays some subtle, complex and counter-intuitive properties.
Keyword(s)
A PHP Error was encountered
Severity: Notice
Message: Undefined variable: pub_keywords
Filename: front/publication.php
Line Number: 77
Backtrace:
File: /home/prdbpk/public_html/application/views/front/publication.php
Line: 77
Function: _error_handler
File: /home/prdbpk/public_html/application/controllers/Front.php
Line: 221
Function: view
File: /home/prdbpk/public_html/index.php
Line: 315
Function: require_once
A PHP Error was encountered
Severity: Warning
Message: Invalid argument supplied for foreach()
Filename: front/publication.php
Line Number: 77
Backtrace:
File: /home/prdbpk/public_html/application/views/front/publication.php
Line: 77
Function: _error_handler
File: /home/prdbpk/public_html/application/controllers/Front.php
Line: 221
Function: view
File: /home/prdbpk/public_html/index.php
Line: 315
Function: require_once
A PHP Error was encountered
Severity: Notice
Message: Undefined variable: pub_info
Filename: front/publication.php
Line Number: 84
Backtrace:
File: /home/prdbpk/public_html/application/views/front/publication.php
Line: 84
Function: _error_handler
File: /home/prdbpk/public_html/application/controllers/Front.php
Line: 221
Function: view
File: /home/prdbpk/public_html/index.php
Line: 315
Function: require_once