Canada has a universal social assistance program that is almost completely administered through the federal Canada Assistance Program. However, provinces determine the levels of assistance for various groups eligible for welfare. This article exploits the variation in payments and uses microdata to estimate the effect of changes in welfare benefits on welfare participation, single parenthood, births out of wedlock, divorce, and labor force participation among low-income women. In Canada, it would appear that welfare benefits influence these decisions.

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This article provides an overview of the Canadian Unemployment Insurance (UI) program, including its evolution, salient features, relative size, and knowledge about its labor market impacts. Understanding of these impacts is limited, and we conclude that an "event-study" approach is a promising way to further this knowledge. We examine the effects of the 1976 UI disentitlement of the elderly on their labor force behavior and find evidence of significant adverse selection effects. Interactions with the public pension system suggest that poverty among the elderly could be best addressed through changes in programs other than UI.

The Myers and Majluf (1984) model predicts a nonpositive price reaction to an announcement of a new issue of equity. This paper shows that the Myers and Majluf result is a direct outcome of their assumption that all potential projects facing the firm have a nonnegative net present value. Refining the Myers and Majluf model, by allowing for the realistic possibility of potential projects having negative net present values, leads to different predictions. The refined model predicts positive as well as negative stock price responses, consistent with recent empirical evidence concerning the stock price effects of new stock issues.

This paper investigates the warrant pricing abilities of dilution-adjusted versions of the Black-Scholes and Jump-Diffusion option pricing models. Because of the typically long lives of warrants, their pricing is hypothesized to benefit from use of the Jump-Diffusion model, which relaxes the Black-Scholes restriction against stock price jumps. Empirical results indicate that while the Black-Scholes model almost uniformly provides more efficient estimates, the Jump-Diffusion model generally provides less biased estimates of market value. Particularly for the valuation of out-of-the-money warrants and warrants on stocks with a history of large and/or frequent jumps, the Jump-Diffusion model may be preferred.

This paper considers tests for parameter instability and structural change with unknown change point. The results apply to a wide class of parametric models that are suitable for estimation by generalized method of moments procedures. The asymptotic distributions of the test statistics considered here are nonstandard because the change point parameter only appears under the alternative hypothesis and not under the null. The tests considered here are shown to have nontrivial asymptotic local power against all alternatives for which the parameters are nonconstant. The tests are found to perform quite well in a Monte Carlo experiment reported elsewhere. Copyright 1993 by The Econometric Society.

First-order autoregressive/unit root models with independent identically distributed normal errors are considered, including those without an intercept, those with an intercept, and those with an intercept and time trend. The autoregressive parameter is allowed to lie in the interval (-1, 1], which includes the unit root case. Exactly median-unbiased estimators and exact confidence intervals of the autoregressive parameter are introduced. Corresponding exactly median-unbiased estimators and exact confidence intervals are also provided for the impulse response function, the cumulative impulse response, and the half life of a unit shock. An unbiased model selection procedure is discussed. The introduced procedures are applied to several data series. Copyright 1993 by The Econometric Society.

This paper provides a model of how borrowers with private information about their credit prospects choose seniority and maturity of debt. Increased short-term debt leads lenders to liquidate too often. It also increases the sensitivity of financing costs to new information, although better-than-average borrowers desire information sensitivity. The model implies that short-term debt will be senior to long-term debt, and that long-term debt will allow the issue of additional future senior debt. The model also has implications on the structure of leveraged buyouts and on how various types of lenders respond to potential defaults.

This paper extends the growing literature on factors affecting cross‐sectional and intertemporal variation in earnings response coefficients. It tests the empirical implications of recent theoretical work by Choi and Salamon (1989) and Holthausen and Verrecchia (1988), who model the degree of price adjustment associated with earnings announcements as a function of the amount of noise or garbling in the accounting earnings signal relative to valuation‐relevant cash flows or dividends. The particular earnings measurements considered relate to U.S. multinational companies and to the differences in income determination under Statement of Financial Accounting Standards (SFAS) No. 8 and SFAS No. 52. The study finds a modestly smaller relative price adjustment for a given amount of unexpected earnings for multinational firms than for nonmultinationals during the SFAS No. 8 period. This finding is consistent with multinationals producing “noisier” earnings signals during this time period. However, several indirect measures suggest that there was greater prior probability uncertainty associated with the future cash flows or dividends of the nonmultinational sample. Accordingly, this cannot be ruled out as a competing explanation for the observed differences in the market's response to earnings signals during the SFAS No. 8 period. Following the implementation of SFAS No. 52 , the earnings response coefficient increased substantively for firms whose accounting for translation gains or losses was most affected by this standard. These results suggest that the earnings measurements produced under SFAS No. 52 were perceived by market participants to be of higher quality (less noisy) than those produced under SFAS No. 8. The framework and analysis in this paper hold promise for investigating the relative informativeness of earnings signals produced under alternative income determination rules. Résumé. Les auteurs apportent leur contribution personnelle aux publications de plus en plus nombreuses portant sur les facteurs qui touchent la variation transversale et temporelle des coefficients de réaction aux bénéfices. Ils vérifient les conséquences empiriques des travaux théoriques récents de Choi et Salamon (1989) et de Holthausen et Verrecchia (1988), qui modélisent le degré d'ajustement du cours des valeurs associé aux annonces de bénéfices comme étant fonction de la quantité de parasites ou de l'importance du brouillage dans le signal que constituent des bénéfices comptables par rapport aux flux monétaires ou aux dividendes pertinents à l'évaluation. Les mesures particulières des bénéfices auxquelles s'intéressent les auteurs sont celles de multinationales des États‐Unis et font état de la variation des bénéfices, selon qu'ils sont évalués conformément au SFAS no 8 ou au SFAS no 52. Pour un montant donné de bénéfices inattendus, les auteurs constatent un ajustement relatif du cours des valeurs légèrement plus faible dans le cas des multinationales que dans celui des entreprises d'envergure plus modeste, au cours de la période d'application du SFAS no 8. Cette constatation est conforme à l'hypothèse voulant que les multinationales aient produit des indicateurs de bénéfices plus « brouillés » au cours de cette période. Toutefois, plusieurs mesures indirectes donnent à penser qu'il existait une incertitude plus grande quant à la probabilité a priori des flux monétaires ou des dividendes futurs dans l'échantillon des entreprises d'envergure plus modeste. Les auteurs ne peuvent donc écarter cette hypothèse à titre d'explication concurrente des différences observées dans la réaction du marché aux indicateurs de bénéfices, au cours de la période d'application du SFAS no 8. À la suite de l'instauration du SFAS no 52, le coefficient de réaction aux bénéfices a sensiblement augmenté dans le cas des entreprises dont la méthode comptable relative à la conversion des gains et des pertes était davantage touchée par cette norme. Ces résultats laissent croire que les mesures des bénéfices conformes au SFAS no 52 ont été perçues par les intéressés comme étant de plus grande qualité (c'est‐à‐dire moins brouillées) que les mesures conformes au SFAS no 8. Le cadre de référence et l'analyse contenus dans cet article sont prometteurs pour l'analyse de la qualité relative de l'information livrée par les indicateurs de bénéfices conformes à d'autres règles d'évaluation des bénéfices.