發送短信

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  ____      ______             _    _    _____    
 |  _ \\   /_   _//   ____    | || | || |  __ \\  
 | |_| ||   -| ||-   |    \\  | || | || | |  \ || 
 | .  //    _| ||_   | [] ||  | \\_/ || | |__/ || 
 |_|\_\\   /_____//  |  __//   \____//  |_____//  
 `-` --`   `-----`   |_|`-`     `---`    -----`   
                     `-`

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發送短信 : AN EVALUATION OF R.H. COASE'S CONTRIBUTION TO THE THEORY OF THE FIRM AND TO THE PROBLEM OF SOCIAL COST