After more than a year of preparation, Manufacturers and Traders Bank  has taken charge of an investment sales program formerly managed by Liberty   Financial Cos.   
The Buffalo bank - the lead unit of $10.3 billion-asset First Empire  State Corp. - is now conducting a broad range of securities sales through   its brokerage affiliate, M&T Securities. The affiliate had previously   handled discount-brokerage transactions only.     
  
"Our program had evolved to such a size that it made sense to bring this  in-house," said James A. Gately, president of M&T Securities. "We felt we   could equal or better the amount of revenue that the Liberty program had   generated for us."     
M&T's move places it among the many large and midsize banks, including  Dime Bancorp. and Wells Fargo & Co., that outgrew their relationships with   their investment product marketers and set out on their own. M&T had been   the largest user of Boston-based Liberty's full-service brokerage program.     
  
"I think that any bank, of almost any size, that gets into this business  goes in thinking that one day they'll do it themselves," said J. Edward   Diamond, president of Dime Securities of New York.   
While bringing an investment program in-house means a bank will keep a  bigger slice of the revenue stream, pure economics is not the prime   motivator behind banks' drive to internalize, Mr. Diamond said.   
"Being able to use your own name to promote these services gives a level  of control in a program that can help make it an integral part of the   bank's overall services," he said.   
  
Maintaining continuity in the investment program is also seen as  essential to an easy transition for a bank and its customers. To that end,   M&T extended job offers to all of Liberty's 72 full-time investment sales   representatives last fall, and all but two accepted. The reps will work out   of M&T's 140 branches in New York and Pennsylvania.       
James A. Gately, president of M&T Securities, said the bank did $1  billion of investment sales in 1994, with $275 million coming from the sale   of mutual funds and annuities.   
M&T hopes to boost its sales this year by offering a broader range of  investment options, including adding Financial Horizon Inc.'s Best of   America variable annuities and funds from Federated Investors.   
The bank is also hoping to cash in on the popularity of Treasury  instruments and government and municipal bonds by making them more widely   available to bank customers. Until now, those investments were sold only   through the bank's discount brokerage service.     
  
"We've found that our customers are interested in investing, on a short-  term basis, in local governments and school boards," Mr. Gately said. 
M&T investment reps are also training to use asset-allocation software  the bank has licensed from Sterling Wentworth, a Salt Lake City-based   software company. The service will be made available at branches early this   month.     
While Liberty will no longer manage the M&T program, the company has  been contracted to help M&T Securities resolve any problems that may crop   up as the bank moves to new recordkeeping platform maintained by Beta   Systems Inc., a Milwaukee-based clearing firm owned by Kemper Corp.     
Kenneth Hoffman, president of the Optima Group, a Fairfield, Conn.-based  consulting firm, said the choice of a clearing firm is an important   decision, because it "directly affects the interaction of sales platform   reps with customers." That's because some clearing firms only give reps the   barest information on the investment products available.