The rate of time preference (RTP) has traditionally not been regarded as an important source of economic fluctuations. In this paper, I show that it is an important factor influencing economic fluctuations because households must have an expected RTP for the representative household (RTP RH) to...

In this paper, an explanation for the diminishing marginal product of labor is demonstrated in a model that incorporates the concept of entropy from information theory. First, I introduce the concept of “division of work” and argue that the division of work (i.e., the allocation of tasks in...

Keynes’ original intention in introducing the concept of a liquidity trap was to explain the reason why persistent large amounts of unutilized resources were generated during the Great Depression. This paper shows that this type of phenomenon cannot be explained in the framework of a...

The hybrid New Keynesian Phillips curve has been criticized for lacking a micro-foundation. In this paper, an alternative purely forward-looking model of the Phillips curve is constructed on the basis of a micro-foundation of trend inflation. In addition, another source of output gaps other than...

The socially optimal allocation has been regarded to be unspecifiable because of utility’s interpersonal incomparability, Arrow’s general possibility theorem, and other factors. This paper examines this problem by focusing not on the social welfare function but instead on the utility...

This paper examines the socially optimal allocation by focusing not on the social welfare function but instead on the utility possibility frontier in exogenous growth models with a heterogeneous population. A unique balanced growth path was found on which all of the optimality conditions of all...

In this paper, a theory of total factor productivity (TFP) that incorporates a model of intelligence is formulated and described. In particular, the fluid intelligence of ordinary workers is emphasized as an important element in TFP because such workers have the intelligence to innovate, even...

The assumption of the representative household defined as the average of all households is impossible in dynamic models if households are heterogeneous in their time preference rates because, as is well known, the most patient household eventually prevails. Because time preference rates are...

This paper theoretically examines a way out of the euro crisis based on a model of inflation acceleration and differentials. The conclusion is that, unless more advantaged states (e.g., Germany) systematically transfer a necessary amount of money to less advantaged states (e.g., Greece) in every...

A theory of total factor productivity (TFP) is needed to explain why substantial differences in international income have been observed. This paper presents a theory of TFP that incorporates workers’ innovations. Because workers are human and capable of creative intellectual activities, they...