Asset Allocation Via The Conditional First Exit Time or How To Avoid Outliving Your Money

The risk of outliving your money (or shortfall) with low risk, low return investments is very often more serious than the risk of losing money on high risk investments, until quite late in life. A stochastic process model incorporating mortality tables for men and women of retirement age, random rates of return and fixed initial wealth and desired level of consumption provides the analytical tool. A simulation using Canadian mortality tables and rates of return shows that almost all retirees should invest some of their wealth in equity, and for many the optimal allocation is 70–100% equity. The risk of shortfall is surprisingly high for a reasonable range of values of the variables, especially for an allocation of 100% in treasury bills. Women face much greater risk of shortfall than men. The analytical model also permits calculation of the distribution of the bequest and hence allows an individual to trade off changes in shortfall risk against changes in the expected bequest to the heirs.     

Equilibrium Dynamics in an Endogenous Growth Model of Money and Banking

We construct an analytically tractable endogenous growth model of money and banking where money provides "liquidity services" to facilitate transactions and banks convert non-reserve deposits into productive capital. We examine both the long- and short-run effects of changes in the money growth rate or the reserve requirement ratio. In response to a change in the required reserve ratio, the inflation rate and the growth rates of capital, real balances, and consumption need not adjust monotonically along the transition path. While the balanced growth equilibrium may be either a saddle or a source locally, the global dynamical system exhibits flip bifurcation.     

What Drives the Owner‐Occupied and Rental Housing Markets? Evidence from an Estimated DSGE Model

Most dynamic stochastic general equilibrium (DSGE) models with a housing market do not explicitly include a rental market and assume a tight mapping between house prices and rents over the business cycle. However, rents are much smoother than house prices in the data. We match this feature of the data by adding both an owner‐occupied housing market and a rental market in a standard DSGE model. The intertemporal preference shock accounts for more than half of the variation in house prices and contributes to residential investment fluctuations through the liquidity constraint, and nominal rigidity in rental contracts captures the variation in the price‐rent ratio.     

An Unobserved Components Model of the Yield Curve

We develop an unobserved component model in which the short‐term interest rate is composed of a stochastic trend and a stationary cycle. Using the Nelson–Siegel model of the yield curve as inspiration, we estimate an extremely parsimonious state‐space model of interest rates across time and maturity. The time‐series process suggests a specific functional form for the yield curve. We use the Kalman filter to estimate the time‐series process jointly with observed yield curves, greatly improving empirical identification. Our stochastic process generates a three‐factor model for the term structure. At the estimated parameters, trend and slope factors matter while the third factor is empirically unimportant. Our baseline model fits the yield curve well. Model generated estimates of uncertainty are positively correlated with estimated term premia. An extension of the model with regime switching identifies a high‐variance regime and a low‐variance regime, where the high‐variance regime occurs rarely after the mid‐1980s. The term premium is higher, and more so for yields of short maturities, in the high‐variance regime than in the low‐variance regime. The estimation results support our model as a simple and yet reliable framework for modeling the term structure.     

A Normative Analysis of Housing-Related Tax Policy in a General Equilibrium Model of Housing Quality and Prices

We evaluate an array of housing-related tax policies in a general equilibrium model with endogenous housing quality and prices. The local government facilitates the provision of local public amenities, financed by an array of housing-related taxes, including a developer gross revenue tax, a property tax, a land tax, and a development license fee. In a competitive spatial equilibrium, all households optimize and reach the same utility, all monopolistically competitive developers optimize and receive zero profit, and both housing and land markets clear. We examine the effects of various tax policies on housing quality, housing prices, land rent, as well as the population and housing density. By evaluating quantitatively the welfare of the local economy, we establish a globally optimal tax scheme in the housing market: complete elimination of the property tax and imposition of a lower gross revenue tax (possibly fully eliminated) than both development and land taxes.     

论会计诚信危机的原因与治理对策

会计信息失真已成为当前严重影响社会经济生活正常秩序的突出问题,会计诚信危机的原因是错综复杂的,面对诚信危机,应正确了解和认识会计诚信,营造有利于会计诚信的内部环境,重塑会计诚信须加快完善公司治理结构,提高会计失信成本,应将会计诚信建设纳入整个社会的信用体系建设。     

COURNOT AND BERTRAND EQUILIBRIA COMPARED: A CRITICAL REVIEW AND AN EXTENSION FROM THE OUTPUT‐STRUCTURE VIEWPOINT*

This paper compares Bertrand competition with Cournot competition. In previous studies, the welfare ranking has not been examined in any general setting. One purpose of this work is to fill this gap. In the Zanchettin model, the ranking regarding the less efficient firm's output is sensitive to the degree of asymmetry between firms, whereas the welfare ranking is not. Another goal of this study aims at dealing with this paradox. We demonstrate that the rankings regarding average price, average output and the Herfindahl index are not sensitive to the degree of asymmetry, and hence can explain the welfare ranking.     

Optimal Drug Policy in Low‐Income Neighborhoods

The control of drug activity currently favors supply‐side policies: drug suppliers in the United States face a higher arrest rate and longer sentences than demanders. We construct a simple model of drug activity with search and entry frictions in labor and drug markets. Our calibration analysis suggests a strong “dealer replacement effect.”  As a result, given a variety of community objectives, it is beneficial to lower supplier arrests and raise the demand arrest rate from current values. A 10% shift from supply‐side to demand‐side arrests can reduce the population of potential drug dealers by 22–25,000 and raise aggregate local income by $380–$400 million, at 2002 prices.     

BUSINESS CYCLE TRENDS,CYCLES AND GROWTH REVISITED: WITH APPLICATIONS TO G7 ECONOMIES*

This paper examines the behaviour of G7 economies and decomposes their GDP into trend and cycle components using the Kalman filter. The general model of the paper encompasses a number of alternative specifications about trend growth, therefore accommodating diverse views on growth. The business cycle characteristics of G7 economies are then discussed, compared and deliberated in this framework. The empirical results overwhelmingly favor a mean‐reverting stochastic process for the growth rate, the general and unrestricted specification of the paper, across G7 countries, though the restrictions are statistically rejected in less than half of the cases. Further reflection on the properties of cycles makes the specifications and the results of this study more reasonable in capturing the characteristics of GDP series, and contributes to solving the controversies in model specifications in some previous studies.     

日本中小风险企业资金来源的多样化研究

日本采取资金供给的多元化和政府的积极参与来解决日本中小风险企业的筹资问题。这种解决方案是其在间接金融体制和资本市场不成熟条件下的必然的制度选择。本文以"信用补完制度"为基础,从日本间接金融、完善中的资本市场和过渡期的市场型间接金融等方面对日本中小风险企业资金来源的多样化进行了梳理。