We aim to construct the optimal solutions to the undiscounted continuous-time infinite horizon optimization problems, the objective functionals of which may be unbounded. We identify the condition under which the limit of the solutions to the finite horizon problems is optimal for the infinite...

We aim to generalize the results of Cai and Nitta (2007) by allowing both the utility and production function to depend on time. We also consider an additional intertemporal optimality criterion. We clarify the conditions under which the limit of the solutions for the finite horizon problems is...

Higher-order optimization problems naturally appear when investigating the effects of a patent with finite length, as in the pioneering work of Futagami and Iwaisako (2007). In this paper, we establish the Euler equations and transversality conditions necessary for analyzing such higher-order...

In this paper, we examine higher order difference problems. Using the "squeezing" argument, we derive both Euler's condition and the transversality condition. In order to derive the two conditions, two needed assumptions are identified. A counterexample, in which the transversality condition is...

In this paper we consider emergency government bailouts. We show that it is welfare‐enhancing to bail out failing firms that are facing a sudden negative demand shock and would otherwise go bankrupt, when there are sufficiently large fixed production costs and knock‐on effects (the negative...

We model a two-country bargaining process over the coordination of a horizontally differentiated product standard. We show that the necessary conditions for bargaining to take place are (i) firm heterogeneity and (ii) sufficiently high complying costs. When firms compete à la Cournot in the...