La presente tesi ha come obiettivo analisare il concetto e le specie di squilibrio eccessivo della relazione giuridica di consumo, nonché la possibilitá di correzione di una delle specie di squilibrio eccessivo – l’esercizio abusivo della posizione giuridica dei fornitori – per mezzo della clausola generale di divieto di vantaggio eccessivo, previsto nel Codice di Difesa del Consumatore (Art. 39, V c/c art. 51, IV e §1°). Si tratta, in essenza, di uno studio sulla stessa relazione giuridica di consumo, ragione per la quale si impone, inizialmente, un’analisi con riferimento ai suoi pressuposti fatico-normativi, elementi costitutivi e caratteristica fondamentale (Parte I, Capitolo1) per, soltanto dopo, affrontare il tema degli “squilibri” (strutturale e eccessivo) esistenti in questo tipo di relazione giuridica (Parte I, Capitolo 2), quando si cerca di dimostrare che lo squilibrio eccessivo non si confonda con lo squilibrio strutturale (intrinseco), nella misura in cui questo è realtà costitutiva della stessa relazione giuridica di consumo, essendo, per questo, riconosciuta e tollerabile dal dirito; invece, lo squilibrio eccessivo è realtà che supera i limiti del “giuridicamente tollerabile” – cioè, dello stato di squilibrio strutturale – e, per questo motivo, necessita di essere correta da un mezzo dell’ordine giuridica ( nel caso brasiliano, dal sistema giuridico di protezione e difesa dei consumatori, centralizzato nei valori e norme costituzionali e sistematizzato nel Codice di Difesa del Consumatore – Legge n. 8.078, dell’11 settembre 1990). E per la correzione delle situazioni di squilibrio eccessivo della relazione di consumo generate dall’esercizio abusivo della posizione giuridica dei fornitori il legislatore brasiliano, attento alla necessità di comprensione del diritto privato come un sistema giuridico aperto (Parte II, Capitolo 3) ha costruito il Codice di Difesa del Consumatore come uno microsistema dotato di norme casistiche e di norme aperte (le cosidette “clausole generali”), distacandosi, tra loro, la clausola generale di divieto di vantaggio eccessivo, che si intende essere la “clausola fondamentale di correzione dell’abuso nelle relazioni giuridiche di consumo” (Parte II, Capitolo 4), allo stesso tempo in cui suo ambito di applicazione, fissato dallo stesso leggislatore (CDC, art. 51,§1º), contiene, dovuto alla sua grande generalità, l’ambito delle altre clausole generali di correzione e abuso, così come quelle di funzione sociale ed economica del diritto, buona-fede obiettiva, buone abitudine e lesione enorme, tutelando, infine, la globalità dei legittimi interessi dei consumatori – cioè, i loro interessi di natura patrimoniale e esistenziale – danneggiati dalla attuazione abusiva dei fornitori nel mercato di consumo. / A presente tese tem por objetivo analisar o conceito e as espécies de desequilíbrio excessivo da relação jurídica de consumo, bem como a possibilidade de correção de uma das espécies de desequilíbrio excessivo – o exercício abusivo de posição jurídica dos fornecedores – por meio da cláusula geral de proibição de vantagem excessiva, prevista no Código de Defesa do Consumidor (Art. 39, V c/c art. 51, IV e §1º). Trata-se, em essência, de um estudo sobre a própria relação jurídica de consumo, razão pela qual se impõe, inicialmente, uma análise acerca de seus pressupostos fático-normativos, elementos constitutivos e característica fundamental (Parte I, Capítulo 1) para, só então, enfrentar o tema dos “desequilíbrios” (estrutural e excessivo) existentes nesse tipo de relação jurídica (Parte I, Capítulo 2), quando se busca demonstrar que o desequilíbrio excessivo não se confunde com o desequilíbrio estrutural (intrínseco), na medida em que este é realidade constitutiva da própria relação jurídica de consumo, sendo, por isso mesmo, reconhecida e tolerável pelo direito; ao contrário, o desequilíbrio excessivo é realidade que ultrapassa os limites do “juridicamente tolerável” – isto é, do estado de desequilíbrio estrutural - e, por este motivo, precisa ser corrigida por meio da ordem jurídica (no caso brasileiro, pelo sistema jurídico de proteção e defesa dos consumidores, centralizado nos valores e normas constitucionais e sistematizado no Código de Defesa do Consumidor – Lei n. 8.078, de 11 de setembro de 1990). E para a correção das situações de desequilíbrio excessivo da relação de consumo geradas pelo exercício abusivo da posição jurídica dos fornecedores o legislador brasileiro, atento à necessidade de compreensão do direito privado como um sistema jurídico aberto (Parte II, Capítulo 3) construiu o Código de Defesa do Consumidor como um microsssistema dotado de normas casuísticas e de normas abertas (as chamadas “cláusulas gerais”), destacando-se, quanto a estas, a cláusula geral de probição de vantagem excessiva, que se entende ser a “cláusula fundamental de correção do abuso nas relações jurídicas de consumo” (Parte II, Capítulo 4), na medida em que seu âmbito de aplicação, fixado pelo próprio legislador (CDC, art. 51, §1º), abarca, por sua grande generalidade, o âmbito das demais cláusulas gerais de correção do abuso, como as de função social e econômica do direito, boa-fé objetiva, bons costumes e lesão enorme, tutelando, enfim, a globalidade dos legítimos interesses dos consumidores – isto é, seus interesses de natureza patrimonial e existencial – lesados pela atuação abusiva dos fornecedores no mercado de consumo. / The present thesis aims to analyze the concept and the species of excessive unbalance of the legal consumption relationship, as well as the possibility of correction of one of the species of excessive unbalance – the abusive use of the legal position of the suppliers – by the inclusion of the general clause of prohibition of unfair advantage, set out in the Consumer Defense Code (Art. 39, V c/c art. 51, IV and §1º). It is, essentially, a study on the legal consumption relationship itself, a reason for which it is imposed, initially, an analysis concerning its phaticnormative presumptions, constitutive elements and key characteristic (Part I, Chapter 1) for, only then, face the topic of “imbalances” (structural and excessive) existing in this type of legal relationship (Part I, Chapter 2), when willing to demonstrate that the excessive imbalance is not confounded with the structural imbalance (intrinsic), inasmuch as this is a constitutive reality of the legal consumption relationship itself, being, therefore, acknowledged and bearable by the law; on the contrary, the excessive imbalance is a reality which overcomes the limits of the “legally bearable” – that is, the structural imbalance status - and, for this reason, it has to be corrected by the law (in the Brazilian case, by the legal system of protection and defense of consumers, centered in the values and constitutional norms e ordered in the Consumer Defense Code – Law n. 8.078, from September 11th, 1990). And for the correction of excessive imbalance situations in the consumption relationship caused by the abusive practice of the legal position of the suppliers, the Brazilian legislator, attentive to the need of understanding of the private law as an open legal system (Part II, Chapter 3) created the Consumer Defense Code as a microsystem with cauistic norms and open norms (the so-called “general clauses”), highlighting, concerning these, the general clause of prohibition of unfair advantage, which is understood as the “key clause of abuse correction in the consumption legal relationships” (Part II, Chapter 4), inasmuch as in its scope of application, set by the legislator (CDC, art. 51, §1º), embraces, due to all things considered, the scope of the other general clauses of abuse correction, such as the law social and economic function, bona fide intentions, good manners and serious harm, tutoring, then, the whole of legitimate interests of the consumers – that is, their interests of property and existential nature – harmed by the abusive practice of suppliers in the consumer market.

This article presents in general terms the nature and characteristics of some of the key legal institutions of taxation such as tax legal relationship, the principal tax liability and payment as means to cease the obligation (before the actions that can display the State for tax debt collection) and also explaining the most important legal policy issues that such institutions have received in Peru. / El presente artículo expone, de manera general, la naturaleza y características de algunas de las instituciones jurídicas fundamentales del Derecho Tributario, tales como la relación jurídico tributaria, la obligación tributaria principal y el pago, como modo de extinción de ésta (antes del inicio de los actos que puede desplegar el Estado para realizar la cobranza coactiva de los tributos); explicando –cuando corresponda– los aspectos normativos más importantes que regulan tales instituciones en el Perú.

Over the past decade, the regulation of mining in South Africa has undergone a fundamental transformation in order to promote equitable access to the nation’s mineral and petroleum resources. The Mineral and Petroleum Resources Development Act 28 of 2002, drastically changed the regulation of mining by placing the nation’s mineral and petroleum resources under the custodianship of the state. The transformative objectives of resource reform, as envisaged in the Constitution of the Republic of South Africa, 1996, could however not be achieved without a measure of sacrifice -- most notably, that which had to be shouldered by the owners of the land in which the minerals are contained. Under common law, minerals vested in the owners of land and no one could compel them to extract or consent to the extraction of these minerals. Landowners were able to safeguard their land from mining activities by refusing to consent to mining. The Mineral and Petroleum Resources Development Act, 2002, changed this by providing that landowners could no longer prevent the state from granting qualifying applicants authorisation to mine. The transformative objectives of resource reform, have inevitably made great inroads into a landowner’s rights to use and enjoy his property optimally. The main focus of this study revolves around the limiting impact of South Africa’s current mineral-law dispensation on township development, and conversely, how township development impairs or limits the mining of coal. For a better understanding of the limitations which the current legislative provisions create in respect of the rights of landowners and holders of mining rights, a brief evaluation of the historical development of the right to mine coal is provided. The entitlements and reciprocal obligations of holders of mining rights and owners of the affected land are considered, and the parties’ legal remedies to resist interference in their respective rights are explored. In the process of considering possible remedies to resolve the conflict which inevitably arises, I explain why English-law principles governing lateral support (support owed by two adjacent properties [neighbour law]), and subjacent support (where the landowner may not be deprived of the vertical support his property derives from the sub-surface minerals) were incorrectly transplanted into our law. In Anglo Operations Ltd v Sandhurst Estates (Pty) Ltd, the South African Supreme Court of Appeal rejected the previously-held view that the right to subjacent support -- like the right to lateral support -- is a natural property right incidental to the ownership of the land. It was further held that conflict between holders of rights to minerals and owners of land should be resolved, not in accordance with English-law principles of neighbour law, but in terms of the law developed for rights relating to the use of servitudes. In summary, the court found that where the parties have not specifically contracted against the specific action (such as opencast or planned-subsidence mining), and provided that it was reasonably necessary for the mining right holder to use this invasive method, he may do so, so long as he does so in the manner least injurious to the entitlements of the surface owner. This decision, however, did not take into account the changes brought about by the comprehensive statutory framework of the Mineral and Petroleum Resources Development Act 28 of 2002 which I argue has replaced the earlier servitude construction. In this dissertation I consider whether possible solutions to resolve the conflict can be found in the principles relating to neighbour law, and whether the principles governing the use of servitudes remain relevant in resolving conflicts between landowners and holders of mining rights. I evaluate possible legal remedies and place special emphasis on the constitutionality of the curtailment of a landowner’s use and enjoyment of his property resulting from mining activities on or under his land. I further consider whether the exercise of a mining right, granted by the state, which results in a serious infringement of a landowner’s ownership, could in certain circumstances amount to a deprivation or possibly an expropriation in terms of section 25 of the Constitution. I discuss the position where the state’s regulatory interference is so severe that it deprives a landowner of the ability to exercise any, or a substantial portion of his ownership entitlements. I evaluate the possibility that such interference may constitute de facto expropriation for which compensation may be claimed. In the penultimate chapter I briefly mention how the relationship between landowners and holders of mining rights is managed and conflict is defused in other jurisdictions such as China, Australia, the United States of America, India, Germany and Swaziland. I conclude this dissertation with suggestions on possible ways in which the conflict may be resolved or at least minimised in future. / Die regulering van mynbou in Suid-Afrika het die afgelope dekade ‘n fundamentele verandering ondergaan ten einde breër toegang tot die nasie se minerale en petroleum hulpbronne te bevorder. Die Mineral and Petroleum Resources Development Act,6 Wet 28 van 2002, het ‘n radikale ommekeer in die mynbou industrie meegebring deurdat die regulering van mynbou aktiwiteite onder die toesig en beheer van die nasionale regering geplaas is. Die transformatiewe oogmerk van hulpbron hervorming ingevolge die Grondwet van die Republiek van Suid-Afrika kon egter nie geskied sonder ‘n mate van opoffering nie. Die grootste aanslag van die nuwe mineraalreg bedeling word sonder twyfel gevoel deur die eienaars van grond ten opsigte waarvan mynregte deur die regering aan ‘n ander party toegeken word. Ingevolge die gemenereg was die eienaar van grond voorheen ook die eienaar van die minerale wat in die grond voorgekom het. Gevolglik was dit onder die uitsluitlike beheer van die eienaar om te bepaal of enigiemand anders die reg kon verkry om minerale op of in die betrokke grond te ontgin. Na aanvang van die inwerkingtreding van die Mineral and Petroleum Resources Development Act is hierdie posisie egter omvêrgewerp aangesien die regering voortaan die bevoegdheid het om te bepaal wie en op watter voorwaardes iemand die reg verkry om minerale te ontgin. Die toekenning van die reg om minerale te ontgin op ‘n ander se eiendom sonder die eienaar se toestemming, maak dus ernstige inbreuk op sy regte. Grondeienaars se bevoegdhede wat uit hul eiendomsreg voortvloei word in talle gevalle ernstig ingeperk ten einde die oogmerke van hulpbron transformasie te bereik. Die ondersoek wat hierna volg, is daarop toegespits om die beperkende aanslag van die regulering van steenkoolmynbou-aktiwiteite op die ontwikkeling van dorpsgebiede asook dié van die ontwikkeling van dorpsgebiedie op steenkoolmynbou beter te verstaan. Ten einde hierdie invloed beter te verstaan, word die geskiedkundige ontwikkeling van die reg om minerale in Suid-Afrika te ontgin kortliks oorweeg. Die regte en verpligtinge van die houers van mynregte en die eienaars van die grond wat deur die uitoefening daarvan geraak word, asook die remedies waaroor die onderskye partye beskik ten einde hul regte teen inbreukmaking deur die ander party te beskerm, word daarna oorweeg. In genoemde ondersoek toon ek aan waarom die Engelsregtelike burereg- beginsels van laterale steun en onderstut nie toepassing in ons reg behoort te vind nie en waarom die botsing wat ontstaan vanweë die uitoefening van die grondeienaar en die houer van ‘n mynreg se regte liefs versoen moet word deur die Suid-Afrikaanse serwituutreg beginsels toe te pas soos aangetoon in die beslissing van Anglo Operations Ltd v Sandhurst Estates. Hiedie beslissing het egter nie die veranderinge wat meegebring is deur die nuwe bedeling van die Mineral and Petroleum Resources Development Act in ag geneem nie en daar word gevolglik aangevoer dat die serwituut beginsels vervang is deur ‘n breedvoerige wetgewende stelsel. Die grondwetlikheid van die beperking op die bevoegdhede van ‘n grondeienaar om sy eiendom te gebruik en te geniet, word ondersoek, asook of daar enige gronde vir ‘n eis om skadevergoeding mag wees. In besonder word daar oorweeg of die leerstuk van konstruktiewe onteiening moontlik toepassing kan vind in gevalle waar die staat se regulering ‘n uitermatige beperkende effek het op die bevoegdhede van ‘n grondeienaar om sy eiendomsreg uit te oefen. In die voorlaaste hoofstuk ontleed ek baie kortliks hoe die verhouding tussen eienaars van grond in mynbougebiede en houers van regte om minerale te ontgin in Sjina, Australië, die Verenigde State van Amerika, Indië, Duitsland en Swaziland gereguleer word. Ter afsluiting word aandag gegee aan moontlike maniere om die belangebotsing tussen die betrokke partye uit die weg te ruim of te beperk. / Private Law / LL.M.

Over the past decade, the regulation of mining in South Africa has undergone a fundamental transformation in order to promote equitable access to the nation’s mineral and petroleum resources. The Mineral and Petroleum Resources Development Act 28 of 2002, drastically changed the regulation of mining by placing the nation’s mineral and petroleum resources under the custodianship of the state. The transformative objectives of resource reform, as envisaged in the Constitution of the Republic of South Africa, 1996, could however not be achieved without a measure of sacrifice -- most notably, that which had to be shouldered by the owners of the land in which the minerals are contained. Under common law, minerals vested in the owners of land and no one could compel them to extract or consent to the extraction of these minerals. Landowners were able to safeguard their land from mining activities by refusing to consent to mining. The Mineral and Petroleum Resources Development Act, 2002, changed this by providing that landowners could no longer prevent the state from granting qualifying applicants authorisation to mine. The transformative objectives of resource reform, have inevitably made great inroads into a landowner’s rights to use and enjoy his property optimally. The main focus of this study revolves around the limiting impact of South Africa’s current mineral-law dispensation on township development, and conversely, how township development impairs or limits the mining of coal. For a better understanding of the limitations which the current legislative provisions create in respect of the rights of landowners and holders of mining rights, a brief evaluation of the historical development of the right to mine coal is provided. The entitlements and reciprocal obligations of holders of mining rights and owners of the affected land are considered, and the parties’ legal remedies to resist interference in their respective rights are explored. In the process of considering possible remedies to resolve the conflict which inevitably arises, I explain why English-law principles governing lateral support (support owed by two adjacent properties [neighbour law]), and subjacent support (where the landowner may not be deprived of the vertical support his property derives from the sub-surface minerals) were incorrectly transplanted into our law. In Anglo Operations Ltd v Sandhurst Estates (Pty) Ltd, the South African Supreme Court of Appeal rejected the previously-held view that the right to subjacent support -- like the right to lateral support -- is a natural property right incidental to the ownership of the land. It was further held that conflict between holders of rights to minerals and owners of land should be resolved, not in accordance with English-law principles of neighbour law, but in terms of the law developed for rights relating to the use of servitudes. In summary, the court found that where the parties have not specifically contracted against the specific action (such as opencast or planned-subsidence mining), and provided that it was reasonably necessary for the mining right holder to use this invasive method, he may do so, so long as he does so in the manner least injurious to the entitlements of the surface owner. This decision, however, did not take into account the changes brought about by the comprehensive statutory framework of the Mineral and Petroleum Resources Development Act 28 of 2002 which I argue has replaced the earlier servitude construction. In this dissertation I consider whether possible solutions to resolve the conflict can be found in the principles relating to neighbour law, and whether the principles governing the use of servitudes remain relevant in resolving conflicts between landowners and holders of mining rights. I evaluate possible legal remedies and place special emphasis on the constitutionality of the curtailment of a landowner’s use and enjoyment of his property resulting from mining activities on or under his land. I further consider whether the exercise of a mining right, granted by the state, which results in a serious infringement of a landowner’s ownership, could in certain circumstances amount to a deprivation or possibly an expropriation in terms of section 25 of the Constitution. I discuss the position where the state’s regulatory interference is so severe that it deprives a landowner of the ability to exercise any, or a substantial portion of his ownership entitlements. I evaluate the possibility that such interference may constitute de facto expropriation for which compensation may be claimed. In the penultimate chapter I briefly mention how the relationship between landowners and holders of mining rights is managed and conflict is defused in other jurisdictions such as China, Australia, the United States of America, India, Germany and Swaziland. I conclude this dissertation with suggestions on possible ways in which the conflict may be resolved or at least minimised in future. / Die regulering van mynbou in Suid-Afrika het die afgelope dekade ‘n fundamentele verandering ondergaan ten einde breër toegang tot die nasie se minerale en petroleum hulpbronne te bevorder. Die Mineral and Petroleum Resources Development Act,6 Wet 28 van 2002, het ‘n radikale ommekeer in die mynbou industrie meegebring deurdat die regulering van mynbou aktiwiteite onder die toesig en beheer van die nasionale regering geplaas is. Die transformatiewe oogmerk van hulpbron hervorming ingevolge die Grondwet van die Republiek van Suid-Afrika kon egter nie geskied sonder ‘n mate van opoffering nie. Die grootste aanslag van die nuwe mineraalreg bedeling word sonder twyfel gevoel deur die eienaars van grond ten opsigte waarvan mynregte deur die regering aan ‘n ander party toegeken word. Ingevolge die gemenereg was die eienaar van grond voorheen ook die eienaar van die minerale wat in die grond voorgekom het. Gevolglik was dit onder die uitsluitlike beheer van die eienaar om te bepaal of enigiemand anders die reg kon verkry om minerale op of in die betrokke grond te ontgin. Na aanvang van die inwerkingtreding van die Mineral and Petroleum Resources Development Act is hierdie posisie egter omvêrgewerp aangesien die regering voortaan die bevoegdheid het om te bepaal wie en op watter voorwaardes iemand die reg verkry om minerale te ontgin. Die toekenning van die reg om minerale te ontgin op ‘n ander se eiendom sonder die eienaar se toestemming, maak dus ernstige inbreuk op sy regte. Grondeienaars se bevoegdhede wat uit hul eiendomsreg voortvloei word in talle gevalle ernstig ingeperk ten einde die oogmerke van hulpbron transformasie te bereik. Die ondersoek wat hierna volg, is daarop toegespits om die beperkende aanslag van die regulering van steenkoolmynbou-aktiwiteite op die ontwikkeling van dorpsgebiede asook dié van die ontwikkeling van dorpsgebiedie op steenkoolmynbou beter te verstaan. Ten einde hierdie invloed beter te verstaan, word die geskiedkundige ontwikkeling van die reg om minerale in Suid-Afrika te ontgin kortliks oorweeg. Die regte en verpligtinge van die houers van mynregte en die eienaars van die grond wat deur die uitoefening daarvan geraak word, asook die remedies waaroor die onderskye partye beskik ten einde hul regte teen inbreukmaking deur die ander party te beskerm, word daarna oorweeg. In genoemde ondersoek toon ek aan waarom die Engelsregtelike burereg- beginsels van laterale steun en onderstut nie toepassing in ons reg behoort te vind nie en waarom die botsing wat ontstaan vanweë die uitoefening van die grondeienaar en die houer van ‘n mynreg se regte liefs versoen moet word deur die Suid-Afrikaanse serwituutreg beginsels toe te pas soos aangetoon in die beslissing van Anglo Operations Ltd v Sandhurst Estates. Hiedie beslissing het egter nie die veranderinge wat meegebring is deur die nuwe bedeling van die Mineral and Petroleum Resources Development Act in ag geneem nie en daar word gevolglik aangevoer dat die serwituut beginsels vervang is deur ‘n breedvoerige wetgewende stelsel. Die grondwetlikheid van die beperking op die bevoegdhede van ‘n grondeienaar om sy eiendom te gebruik en te geniet, word ondersoek, asook of daar enige gronde vir ‘n eis om skadevergoeding mag wees. In besonder word daar oorweeg of die leerstuk van konstruktiewe onteiening moontlik toepassing kan vind in gevalle waar die staat se regulering ‘n uitermatige beperkende effek het op die bevoegdhede van ‘n grondeienaar om sy eiendomsreg uit te oefen. In die voorlaaste hoofstuk ontleed ek baie kortliks hoe die verhouding tussen eienaars van grond in mynbougebiede en houers van regte om minerale te ontgin in Sjina, Australië, die Verenigde State van Amerika, Indië, Duitsland en Swaziland gereguleer word. Ter afsluiting word aandag gegee aan moontlike maniere om die belangebotsing tussen die betrokke partye uit die weg te ruim of te beperk. / Private Law / LL. M.