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31.
American-style Indexed Executive Stock Options   总被引:3,自引:0,他引:3  
This paper develops a new pricing model for American-style indexed executive stock options. We rely on a basic model framework and an indexation scheme first proposed by Johnson and Tian (2000a) in their analysis of European-style indexed options. Our derivation of the valuation formula represents an instructive example of the usefulness of the change-of-numeraire technique. In the paper's numerical section we implement the valuation formula and demonstrate that not only may the early exercise premium be significant but also that the delta of the American-style option is typically much larger than the delta of the otherwise identical (value-matched) European-style option. Vega is higher for indexed options than for conventional options but largely independent of whether the options are European- or American-style. This has important implications for the design of executive compensation contracts. We finally extend the analysis to cover the case where the option contracts are subject to delayed vesting. We show that for realistic parameter values, delayed vesting leads only to a moderate reduction in the value of the American-style indexed executive stock option.  相似文献   
32.
An algorithm is described to compute equilibria of the general economic model with incomplete asset markets, that is, of GEI. The algorithm is based on the existence of a route of zeros of a homotopy whose domain includes the price simplex and a Grassmann Manifold. This route is followed, in effect, by localizing and following diffeomorphic pieces in Euclidean space, and by relocalizing as is necessary.  相似文献   
33.
This study investigates the presentations of Hiroshima and Nagasaki as postwar tourism destinations in a selection of Japanese-language guidebooks. Comparison is made between commonly voiced criticisms of Japanese attitudes toward the two atom-bombed sites and the tourism activities suggested by the publications themselves. An expected presentation emphasizing Japanese suffering as a result of the atom bombs is not found in the guides, but neither is an openness to discussion of the war. The conclusions reached find Hiroshima standing as emblematic of the rebuilding nation as a whole, while Nagasaki remains largely outside of the social and cultural dynamics of postwar Japan.  相似文献   
34.
Mortgage-prepayment risk underlies the structuring of mortgage-backed derivative securities, such as tranched real estate mortgage investment conduits. This prepayment comes either from mortgage termination or from curtailment, where the borrower retains the existing mortgage and prepays a portion. There are differences in cash flows from the two types of prepayment. In termination, the loan disappears from a pool, and the scheduled payment to investors in the pool is reduced. In curtailment, the loan survives, and the scheduled payment is unchanged but the term is reduced. There are implications for structuring mortgages and derivative securities. The prepayment decision is embedded in an in-tertemporal household utility maximization framework where choices are made between refinancing, making the regular payment, default or curtailment. Empirical results are presented for Government National Mortgage Association (GNMA) pools, and an algorithm is presented that separates the termination and curtailment components, facilitating the development of derivative securities.  相似文献   
35.
Zusammenfassung Die Wirkung von ausl?ndischer Kapitalbeteiligung und Kreditfinanzierung auf Ersparnisbildung und Wachstum in Entwicklungsl?ndern. — Zur Bew?ltigung der internationalen Schuldenprobleme von Entwicklungsl?ndern wird h?ufig vorgeschlagen, die Struktur des Kapitalimports zugunsten von Forderungsarten zu verschieben, bei denen sich die Gl?ubiger am wirtschaftlichen Risiko beteiligen, wie dies etwa bei Direktinvestitionen der Fall ist. Die Wahl zwischen Kapitalbeteiligung und Kreditfinanzierung mag jedoch Risiko-Ertrag-Konflikte zwischen Einkommensstabilit?t und erwartetem wirtschaftlichem Wachstum involvieren. Diese Hypothese wird aus einem entscheidungstheoretischen Modell auf der Basis eines Benutzer-Eigentümer Verh?ltnisses abgeleitet und mittels einer L?nderquerschnittsuntersuchung regressionsanalytisch getestet. Es zeigt sich, da\ bei nichtkooperativen Beziehungen zwischen Schuldnern und Gl?ubigern kreditfinanzierte Kapitalimporte einen vergleichsweise starken positiven Einflu\ auf die Ersparnisbildung und das Wirtschaftswachtum im Schuldnerland ausüben. Kapitalbeteiligungen k?nnen deshalb nicht ohne weiteres als vorteilhaft angesehen werden und auch nicht allen L?ndern empfohlen werden, ohne zu bedenken, wie sich soziale Gruppen gegenüber dem Risiko verhalten.
Résumé Les effets de l’influx de la dette et du capital propre sur l’épargne et la croissance en économies développantes. — L’élément commun des beaucoup de propositions données pour faciliter les problèmes de la dette extérieure des pays développants est l’intention de changer la structure des importations de capital vers l’augmentation du rapport des créances qui basent sur quelque forme de partager les risques, p.e. la participation en capital propre. Cependant, le choix entre le capital propre ou des influx des capitaux financés par des dettes peut induire un conflit de ?rendement-risque? entre la stabilité de revenu et la croissance attendue. Cette hypothèse est dérivée d’un modèle choix-théorique basé sur l’approche agent-principal et testée empiriquement en appliquant l’analyse de régression trans-pays. Les auteurs démontrent que, dans un cadre non-coopératif des relations débiteurcréditeur, des transferts financés par des dettes ont une influence plus positive sur l’épargne et la croissance économique. La participation en capital propre ne peut pas être évaluée supérieure sans ambigu?té et c’est pourquoi elle ne peut pas être recommendée pour tous les pays, indépendant des attitudes sociales envers le risque.

Resumen El efecto del endeudamiento sobre el ahorro y el crecimiento eneconomías en desarrollo comparado con el de las inversiones directas. — En varias propuestas para aliviar el problema de la deuda externa de los países en desarrollo se sugiere alterar la composición de las importaciones de capital en el sentido de aumentar la proportión de derechos con participación en el riesgo económico, es decir, la participación de la inversión directa. La elección entre inversión directa y deuda considera la relación inversa riesgo-beneficio que existe entre la estabilidad del ingreso y el crecimiento esperado. Esta tesis se dériva de un modelo teórico de elección basado en el enfoque agente-principal, que es sometido a un test empírico de regresión sobre una muestra de países. Se muestra que en el marco de relaciones deudor-acreedor de tipo no cooperativas las transferencias de financiamiento por deuda ejercen una influencia positiva relativamente superior sobre el ahorro y el crecimiento económico. La participación directa en el capital no resulta superior en todos casos y por ello no puede ser recomendada para todos los países, independientemente de las actitudes frente al riesgo que prevalezcan.
  相似文献   
36.
The directive on insurance mediation, proposed by the European Commission, is supposed to secure a minimum standard of professional competence for intermediaries to protect customers as well as to ascertain the intermediaries’ freedom of establishment and freedom to provide services in the internal market. Pursuant to the directive, only an intermediary who is registered in his / her home country’s intermediary register will be allowed to mediate insurances. The intermediary has to comply with professional requirements set by the directive in order to be registered. Yet, part-time intermediaries can be exempted from those requirements by the member states. Additionally, the intermediaries are burdened with certain information and documentation duties towards their customers, a breach of which will cause personal liability. Only these contractual duties are to be implemented in the WG (German Insurance Act), which is soon to be basically reformed.  相似文献   
37.
Backtesting Value-at-Risk: A Duration-Based Approach   总被引:2,自引:0,他引:2  
Financial risk model evaluation or backtesting is a key partof the internal model's approach to market risk management aslaid out by the Basle Committee on Banking Supervision. However,existing backtesting methods have relatively low power in realisticsmall sample settings. Our contribution is the exploration ofnew tools for backtesting based on the duration of days betweenthe violations of the Value-at-Risk. Our Monte Carlo resultsshow that in realistic situations, the new duration-based testshave considerably better power properties than the previouslysuggested tests.  相似文献   
38.
UNEMPLOYMENT, HYSTERESIS AND TRANSITION   总被引:3,自引:0,他引:3  
In this paper, we quantify the degree of persistence in the unemployment rates of transition countries using a variety of methods benchmarked against the EU. Initially, we work with the concept of linear ‘Hysteresis’ as described by the presence of unit roots in unemployment as in most empirical research on this area. Given that this is potentially a narrow definition, we also take into account the existence of structural breaks and nonlinear dynamics in unemployment. Finally, we examine whether CEECs' unemployment presents features of multiple equilibria, that is, if it remains locked into a new level whenever some structural change or sufficiently large shock occurs. Our findings show that, in general, we can reject the unit‐root hypothesis after controlling for structural changes and business‐cycle effects, but we can observe the presence of a high and low unemployment equilibria. The speed of adjustment is faster for CEECs than the EU, although CEECs tend to move more frequently between equilibria.  相似文献   
39.
We examine the effects of two different types of commodity taxation, specific and ad valorem, on wages and profits. We analyze two models of wage determination, one with efficiency wage setting and one with union-firm bargaining. In the former, a (locally) revenue-neutral shift from specific to ad valorem taxation leads to an increase in both employment and wages and a reduction in profitability. In the latter, the effect on wages and profits may be reversed: predominantly ad valorem taxation raises employment but lowers wages, and under certain circumstances, the net effect is an increase in profits.  相似文献   
40.
This paper examines the 205 insolvent thrifts that were resolved in 1988 and assesses the cost savings obtained by selling 179 of the institutions through assisted acquisitions rather than liquidating them. It is hypothesized that the cost savings were determined by factors related both to the future viability of the acquired institution and the particulars of the deal arranged by the Federal Home Loan Bank Board and the Federal Savings and Loan Insurance Corporation. The added value by selling a thrift is determined primarily by the level of core deposits obtained by the acquired thrift. However, the branch structure and purchased mortgage-servicing rights should also add franchise value to the firm. In addition to these factors, the analysis accounts for the tax benefits and other regulator forbearances associated with the deals. Other characteristics of the deals are also considered. It is found that core deposits, tax benefits, purchased mortgage-servicing rights, average branch size, and type of acquirer, as well as some other factors, were significant determinants of the cost savings obtained through selling an institution rather than liquidating it.  相似文献   
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