The "Credit-Cost Channel" of Monetary Policy. A Theoretical Assessment

Drawing on the modern literature on the monetary transmission mechanisms with capital market imperfections, this paper presents a model of the "credit-cost channel" of monetary policy. The thrust of the model is that firms' reliance on bank loans ("credit channel") may make aggregate supply sensitive to bank interest rates ("cost channel"), which are in turn driven by the official rate controlled by the central bank. The model is assessed theoretically by examining whether, and under what conditions, changes in the policy interest rate produce the whole pattern of the observed stylized effects of monetary policy, with no recourse to non-competitive hypotheses and frictions in the goods and labour markets. This result is obtained for parameter values in the range of available consensus estimates, with a caveat concerning labour-supply elasticity to the real wage rate

What Mechanism Design Theorists Had to Say About Laboratory Experimentation in the Mid-1980s

Thanks to the recent studies of the history and philosophy of experimental economics, it is well known that around the early 1980s, experimental economists made a case for the legitimacy of their laboratory work by emphasizing that it was a nice and indispensable complement to mechanism design theorists' mathematical study of institutions. The present paper examines what mechanism design theorists thought of laboratory experimentation, or whether they were willing to form a coalition with experimental economists circa the mid-1980s. By exploring several dimensions of the relationship between mechanism design theory and experimental economics, the present paper shows that a close rapport had been established by the early 1980s between the representative members of the two camps, and also that mechanism design theorists were among the strongest supporters of laboratory experimentation in the economics profession in the mid-1980s