anchor.diff:          fun(BrokerName) ->
               register(BrokerName, spawn(market, broker, []))
           end,
  -        atoms_sequence("broker", "_", 1, ?MAX_BROKERS)
  +        atoms_sequence("broker", "_", 1, ?NUM_BROKERS)
       ),
   
       % Register & spawn ticker
  
positive.code: %% Announces current prices to brokers
  %%
  ticker(Listings, Interval) ->
      Brokers = atoms_sequence("broker", "_", 1, ?MAX_BROKERS),
  
      receive
          stop ->
  
negative.code: 
      % Generate listings
      Listings = sets:to_list(sets:from_list(
          for(1, ?NUM_LISTINGS, fun() -> random_symbol() end)
      )),
  
      % Register & spawn brokers
  