Population growth and the transfer paradox in an overlapping generations model

This study investigates whether the transfer paradox (donor enrichment and/or recipient impoverishment) occurs when a donor and a recipient have different population growth rates by using a one‐sector, two‐country overlapping generations model. We show that if the population growth rates differ, neither donor enrichment nor recipient impoverishment occurs in the steady state under dynamic efficiency. This result is in stark contrast to the existing results that the transfer paradox might occur when a donor and a recipient country have different marginal propensities to save, assuming that both have the same population growth rate. Furthermore, we present the condition for the transfer problem to occur on the transition path and show that the transfer paradox is less likely to occur as the economy converges to the steady state. Our result shows that the prevailing finding that the transfer paradox can occur in an overlapping generations model is limited to the special case of countries having the same population growth rate.     

Does licensing promote innovation?

ABSTRACT

We analyse the impact of licensing on the equilibrium amount of cost-reducing innovation under several licensing mechanisms in the case of a duopoly model with heterogeneous firms. Under a wide class of licensing mechanisms, we find that as product substitutability increases, the possibility of higher innovation under licensing compared to no licensing decreases. Therefore, firms’ heterogeneity is crucial to assess whether licensing incentivizes or not R&D cost-reducing investments.     

Reply to Alan Day Haight

Alan Day Haight is incorrect in understanding Piketty’s paradox as a “dynamic version” of Keynes’ paradox of thrift. Keynes’ paradox of thrift deals with equilibrium conditions relating to the flows of savings and investment. In contrast, the capital output ratio central to Piketty’s paradox deals with a stock (capital) relative to a flow (output). Balanced growth cannot be considered an “equilibrium” condition without specifying an adjustment mechanism whereby balanced growth is re-established when the capital-output ratio becomes unbalanced. As illustrated by the Harrod-Domar case this unbalancing can be particularly degenerative when idle capacity develops.     

On the Popular Support for Progressive Taxation

The “popular support for progressive taxation theorem” ( Marhuenda and Ortuño‐Ortín, 1995 ) provides an important formalization of the intuition that a majority of relatively poor voters over rich ones leads to progressive income taxation. Yet the theorem does not provide an equilibrium outcome. In addition, it assumes an overly restrictive domain of tax schedules and no incentive effects of income taxation. This paper shows that none of these assumptions of the theorem can be relaxed completely. Most notably, it is shown that a majority of poor voters does not imply progressive taxation in a more general policy space and that a regressive tax schedule may obtain a majority over a progressive one when individuals' income is endogenous.     

R&D,free entry,and social inefficiency

We employ a three-stage game model with cost-reducing research and development (R&D) that is subject to spillovers to consider the problem of excess entry under free-entry equilibrium relative to the social optimum. Firms choose to enter or exit a market in the first stage, choose R&D in the second stage and output in the final stage. Results show that there is socially inefficient or excessive entry in equilibrium. However, we uniquely demonstrate that research spillovers hold the key to whether established results regarding socially inefficient entry hold. Specifically, excessive entry occurs as long as research spillovers are relatively small, but this is not necessarily the case with large spillovers. Some policy implications are discussed.     

Human resource management and productivity in the “trust game corporation”

Contemporary production activity is crucially determined by the performance of complex tasks with the characteristics of corporate trust games. In this paper, we outline a productivity paradox showing that, under reasonable conditions, the noncooperative solution, which yields a suboptimal firm output, is the equilibrium of corporate trust games when relational preferences are not sufficiently high. We show that tournaments and steeper pay for performance schemes may crowd out cooperation in the presence of players preferences for relational goods. These findings help to explain firm investment in workers’ relationships and the puzzle on the less than expected use of such schemes.     

Endogenous Sunk Costs, Flexible Manufacturing and the Productivity Effects of International Trade

The paper addresses the productivity effects of international trade in the presence of flexible manufacturing and endogenous sunk costs (cost-reducing R&D). It shows that international trade raises R&D expenditures, but this will not necessarily boost productivity because of possibly counteracting market structure effects. The analysis is conducted in general equilibrium so that implications for real wages and welfare can also be addressed. Both can fall when trade leads to excessive R&D investment.     

Progressive Taxation, Tax Exemption, and Irreversible Investment under Uncertainty

We analyze the impact of progressive taxation on irreversible investment under uncertainty. We show that if tax exemption is lower than sunk cost, higher tax rate will decelerate optimal investment by increasing the optimal investment threshold, while if tax exemption exceeds sunk cost, three different regimes arise. For “small” volatilities the optimal investment threshold is a positive function of volatility, but independent of tax rate. For “medium” volatilities it is independent of both tax rate and volatility. Finally, for “high” volatilities the optimal investment threshold depends positively on volatility, but negatively on tax rate so that we have “tax paradox”.     

所有权类型的激励效果与国有资产布局的关系

从不同所有权类型的激励效果出发,在社会福利最大化的约束下,研究了私有产权与国有产权在产业间的配置问题。基本结论如下:私有制下企业经理工作努力水平、创新投资、成本降低投资高于国有制下的水平,但私有制下的公共投资低于国有制下的水平:就某一产业来说,从社会整体效益来看,存在国有产权与私有产权的权衡问题;具体而言,当产业外部收益较大且产业重要程度较高时,应采取国有所有权形式,否则应采取私有所有权形式。     

Delegating Infrastructure Projects with Open Access

This paper provides a simple model that examines a firm's incentive to invest in a network infrastructure through coalition formation in an open-access environment with a deregulated retail market. A regulator faces a dilemma between inducing an incentive for efficient investment and reducing the distortion generated by imperfect competition. We show that, in such a case, the degree of the cost-reducing effect of the investment is crucial from a welfare point of view. In particular, when network investment through coalition formation creates a large (small) cost-reducing effect, the regulator can (should not) delegate an investment decision to firms with an appropriate level of access charge.     

Tax competition in a Bertrand model

We show that in Bertrand models pure-strategy equilibria exist only under extraordinarily restrictive assumptions. We analyze tax competition between two countries for foreign investment. In the symmetric case of equal gross profits of the firms, zero-taxation is the unique equilibrium in pure strategies. If gross profits differ between countries only -equilibria can exist. However, if the tax rate applies to foreign investment as well as to domestic sources no equilibria exist in pure strategies. The same holds true if countries compete for firms that differ in gross profit opportunities, unless extremely unrealistic conditions are met.     

Tariffs,R&D,and two merger policies

We compare welfare-increasing and consumer-surplus-increasing merger policies in an oligopoly when merging firms face endogenous trade policies, and engage in cost-reducing R&D activity. As R&D becomes less efficient, the equilibrium market structures (EMS) become less concentrated under both merger policies. When R&D is very efficient, monopoly becomes the EMS under the welfare-increasing merger policy. This occurs as the absence of tariff and efficient R&D under monopoly limit the price increase and the gain in profits outweighs the loss in consumer surplus and tariff revenue. The results suggest that trade policies should take into account merger policies and industries' R&D efficiency. The results also show that global welfare maximization requires global merger policy coordination.     

Price changes and optimum taxation in a many-consumer economy

A general equilibrium model of a many-consumer economy with commodity taxation is set up, and comparative static effects of small perturbations are studied. Production involves fixed factors which can be interpreted as repositories for pure profits, thus allowing taxation of profits at arbitrary rates. The question of whether the best local improvement starting from a production efficient point will lead to inefficiency is studied. The main concern is whether it will be optimal to rely on profit taxation alone given that it is feasible to do so. An affirmative answer is obtained in special cases where such policy yields the first best, and when the consumers are scaled replicas of one another.     

DO PROFIT MAXIMISERS TAKE COLD SHOWERS? ANOTHER LOOK AT PROTECTION AND TECHNICAL EFFICIENCY

In this paper we consider whether a 'cold shower' is possible if the firm we are analysing is a conventional neoclassical profit-maximising firm facing competitively determined prices. In the context of this analysis, the term 'cold shower' refers to a situation where the removal of a protective subsidy induces investment in a cost-reducing technology. First we show that if the investment lowers marginal cost everywhere, then our firm will never respond to the removal of the subsidy by making the investment. We then use this result to carefully construct examples where the investment does not lower marginal cost everywhere. These examples are devised to illustrate a cold shower scenario where, with no protection in place, the firm makes the investment, that would have been rejected, if the protection had have been in place.     

Progressive taxation and the intensity and timing of investment

This paper examines the effect of progressive taxation on a firm's investment intensity and timing decisions using a real options approach. The firm possesses a perpetual option to invest in a project at any instant by incurring an irreversible investment cost at that time. The amount of the irreversible investment cost determines the intensity of investment that augments the value of the project. Tax progression is specified in a particular case of a constant marginal tax rate with an exogenously given tax exemption threshold that makes the average tax rate increase with the tax base. We show that the firm's investment decisions are neutral to tax progression only when the exogenously given tax exemption threshold is sufficiently large. When tax neutrality does not hold, we show that progressive taxation has a perverse effect on investment intensity. Finally, we show that progressive taxation induces the firm to invest earlier as compared to the case under proportional taxation (i.e., in the absence of any tax exemption).     

Investment behavior and the biased perception of limited loss deduction in income taxation

We use a laboratory experiment to study the extent to which investors’ choices are affected by limited loss deduction in income taxation. We first compare investment behavior in the no tax baseline to a tax control setting, in which the income from investments is taxed. We find that investors significantly reduce their risk-taking as predicted by theory. Next we compare the baseline investment choices to choices under three different types of income taxation. We observe that risk-taking is significantly increased with partial and with capped loss deduction, but is unaffected by a tax system that allows no loss deduction. Since in all these treatments the after tax outcomes of the prospects were identical, we conjecture that investors have a positively biased perception of partial and capped loss deduction that promotes their willingness to take risks.     

The taxation of capital returns in overlapping generations models

This paper shows that in the Diamond (1965) overlapping generations economy with production and capital savings, there is a period-by-period balanced fiscal policy supporting a steady state allocation that Pareto-improves upon the laissez-faire competitive equilibrium steady state (whether dynamically inefficient or efficient) without resorting to intergenerational transfers. The policy consists of taxing linearly (or subsidizing, in the dynamically efficient case) the returns to capital, while balancing the budget period by period through a lump-sum transfer (or tax, respectively) in second period. This intervention grants every generation the highest steady state utility attainable through markets (i.e. remunerating factors by their marginal productivities and without transfers) which under laissez-faire is not a competitive equilibrium outcome. A transition from the competitive equilibrium steady state to this other steady state is also Pareto-improving when the former is dynamically inefficient. The result disentangles from redistributive considerations the impact of the taxation of capital returns on steady state welfare, and thus provides a rationale for the taxation of capital returns that is based on efficiency considerations and not on redistributive goals.     

Dynamic coordination with individual learning

We study coordination in dynamic global games with private learning. Players choose whether and when to invest irreversibly in a project whose success depends on its quality and the timing of investment. Players gradually learn about project quality. We identify conditions on temporal incentives under which, in sufficiently long games, players coordinate on investing whenever doing so is not dominated. Roughly speaking, this outcome occurs whenever players? payoffs are sufficiently tolerant of non-simultaneous coordination. We also identify conditions under which players coordinate on the risk-dominant action. We provide foundations for these results in terms of higher order beliefs.     

Unit Versus Ad Valorem Taxes: The Private Ownership of Monopoly in General Equilibrium

Employing a general equilibrium framework, Blackorby and Murty prove that, with a monopoly and under 100% profit taxation and uniform lump‐sum transfers, the utility possibility sets of economies with unit and ad valorem taxes are identical. This welfare equivalence is in contrast to most previous studies, which demonstrate the superiority of the ad valorem tax in a partial equilibrium framework. In this paper, we relax the assumption of 100% profit taxation and allow the consumers to receive profit incomes from ownership of shares in the monopoly firm. We find that, under certain regularity conditions, for any fixed vector of profit shares, the utility possibility sets of economies with unit and ad valorem taxes are not generally identical. But it does not imply that one completely dominates the other. Rather, the two utility possibility frontiers cross each other. Additionally, employing a standard partial equilibrium welfare analysis, we show that the Marshallian social surpluses resulting from the two tax structures are identical when the government can implement unrestricted transfers.     

Tax Policies,Regional Trade Agreements and Foreign Direct Investment: A Welfare Analysis

In this paper, we develop a partial equilibrium three‐country model to examine the relationship between regional trade agreements (RTAs) and foreign direct investment (FDI) in an environment with double taxation. Our analysis shows that FDI is welfare‐improving for at least one or both of the two regional countries if wage asymmetry is significantly large. FDI and an RTA are also welfare‐improving for the high‐wage country and the region if the wage differential is not small. We also examine the role of repatriation taxes in affecting the determination of firm location under an RTA. Our results suggest that the signing of an RTA may induce relocation from the high‐wage country to the low‐wage country unless an increase in the repatriation tax rate also occurs.